This image shows an artist concept of NASA Mars Atmosphere and Volatile Evolution MAVEN mission.

This artist concept depicts NASA Mars Atmosphere and Volatile EvolutioN MAVEN spacecraft near Mars. MAVEN is in development for launch in 2013 and will be the first mission devoted to understanding the Martian upper atmosphere.

NASA Mars Atmosphere and Volatile EvolutioN MAVEN spacecraft is scheduled to launch in November 2013 and will be the first mission devoted to understanding the Martian upper atmosphere.

Energetic particles from a large solar storm in September 2017 were seen both in Mars orbit and on the surface of Mars by NASA missions to the Red Planet. The horizontal axis for both parts of this graphic is the time from Sept. 10 to Sept. 15, 2017. The upper portion of this graphic shows the increase in protons in two ranges of energy levels (15- to-100 million electron volts and 80-to-220 million electron volts), as recorded by the Solar Energetic Particle instrument on NASA's on NASA's Mars Atmosphere and Volatile Evolution orbiter, or MAVEN. The lower portion shows the radiation dose on the Martian surface, in micrograys per day, as measured by the Radiation Assessment Monitor instrument on NASA' Curiosity Mars rover. Micrograys are unit of measurement for absorbed radiation dose. Note that only protons in the higher bracket of energy levels penetrate the atmosphere enough to be detected on the surface. https://photojournal.jpl.nasa.gov/catalog/PIA21856

How habitable might an Exo-Mars be? It's a complex question but one that NASA's Mars Atmosphere and Volatile Evolution (MAVEN) mission can help answer. To receive the same amount of starlight as Mars receives from our Sun, a planet orbiting an M-type red dwarf would have to be positioned much closer to its star than Mercury is to the Sun. https://photojournal.jpl.nasa.gov/catalog/PIA22075

This artist depiction shows the close encounter between comet Siding Sprng and Mars in 2014. The comet powerful magnetic field temporarily merged with, and overwhelmed, the planet weak magnetic field.

NASA MAVEN spacecraft obtained this ultraviolet image of hydrogen surrounding comet Siding Spring on Oct. 17, 2014, two days before the comet closest approach to Mars.

This frame from an animation shows the sudden appearance of a bright aurora on Mars during a solar storm. The purple-white color scheme shows the intensity of ultraviolet light seen on Mars' night side over the course of the event. The data are from observations on Sept. 12 and 13, 2017, by the Imaging Ultraviolet Spectrograph instrument (IUVS) on NASA's Mars Atmosphere and Volatile Evolution orbiter, or MAVEN. The aurora is occurring because energetic particles from the solar storm are bombarding gases in the planet's atmosphere, causing them to glow. A simulated image of the Mars surface for the same time and orientation is also shown, with the dayside crescent visible on the right. The auroral emission appears brightest at the edges of the planet where the line of sight passes along the length of the glowing atmosphere layer. Note that, unlike auroras on Earth, the Martian aurora is not concentrated at the planet's polar regions. This is because Mars has no strong magnetic field like Earth's to concentrate the aurora near the poles. An animation is available at https://photojournal.jpl.nasa.gov/catalog/PIA21854

These eight graphs present data from the Neutral Gas and Ion Mass Spectrometer on NASA MAVEN orbiter identifying ions of different metals added to the Martian atmosphere shortly after comet C/2013 A1 Siding Spring sped close to Mars.

These images show the sudden appearance of a bright aurora on Mars during a solar storm in September 2017. The purple-white color scheme shows the intensity of ultraviolet light seen on Mars' night side before (left) and during (right) the event. A simulated image of Mars for the same time and orientation has been added, with the dayside crescent visible on the right. The auroral emission appears brightest at the edges of the planet where the line of sight passes along the length of the glowing atmosphere layer. The data are from observations by the Imaging Ultraviolet Spectrograph instrument (IUVS) on NASA's Mars Atmosphere and Volatile Evolution orbiter, or MAVEN. Note that, unlike auroras on Earth, the Martian aurora is not concentrated at the planet's polar regions. This is because Mars has no strong magnetic field like Earth's to concentrate the aurora near the poles. https://photojournal.jpl.nasa.gov/catalog/PIA21855

This graphic depicts what Mars atmosphere would have looked like to a viewer with ultraviolet-seeing eyes after a meteor shower on Oct. 19, 2014.

The places where the red line on this graph extends higher than the blue line show detection of metals added to the Martian atmosphere from dust particles released by a passing comet on Oct. 19, 2014. The graphed data are from NASA MAVEN spacecraft.

This artist concept depicts the Imaging Ultraviolet Spectrograph IUVS on NASA MAVEN spacecraft scanning the upper atmosphere of Mars. IUVS uses limb scans to map the chemical makeup and vertical structure across Mars upper atmosphere.

These profiles show the brightness of aurora emission in Mars' atmosphere at different altitudes. The data are from observations by the Imaging Ultraviolet Spectrograph instrument (IUVS) on NASA's Mars Atmosphere and Volatile Evolution orbiter, or MAVEN. The solid black profile on the right shows the aurora during a September 2017 solar storm. Barely visible along the vertical axis is a dashed profile representing the previous brightest aurora seen by MAVEN, which occurred in March 2015. The recent event is more than 25 times brighter than the previous brightest aurora seen by MAVEN, which has been orbiting Mars since September 2014. https://photojournal.jpl.nasa.gov/catalog/PIA21857

The purple color in this animated GIF shows auroras across Mars' nightside as detected by the Imaging Ultraviolet Spectrograph instrument aboard NASA's MAVEN (Mars Atmosphere and Volatile EvolutioN) orbiter. The brighter the purple, the more auroras were present. Taken as waves of energetic particles from a solar storm were arriving at Mars, the sequence pauses at the end, when the wave of the most energetic particles arrived and overwhelmed the instrument with noise. MAVEN took these images between May 14 and 20, 2024, as the spacecraft orbited below Mars, looking up at the nightside of the planet (Mars' south pole can be seen on the right, in full sunlight). Animation available at https://photojournal.jpl.nasa.gov/catalog/PIA26304

James Green , NASA PLanetary Science Division Director at the Mars Atmosphere and Volatile Evolution Mission (MAVEN) ORBIT INSERTION event

NASA Administrator Charlie Bolden at the Mars Atmosphere and Volatile Evolution Mission (MAVEN) ORBIT INSERTION event

This artist concept depicts NASA Mars Atmosphere and Volatile EvolutioN MAVEN spacecraft near Mars.

This radio hardware, the Electra UHF Transceiver on NASA MAVEN mission to Mars, is designed to provide communication relay support for robots on the surface of Mars.

A model of the MAVEN spacecraft is pictured during a press conference for the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, Ellen Stofan, the agency's chief scientist. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

Bruce Jakosky, MAVEN principal investigator, University of Colorado Boulder Laboratory for Atmospheric and Space Physics, discusses the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

Bruce Jakosky, MAVEN principal investigator, University of Colorado Boulder Laboratory for Atmospheric and Space Physics, discusses the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, John Grunsfeld, the agency's associate administrator for the Science Mission Directorate. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, John Grunsfeld, the agency's associate administrator for the Science Mission Directorate. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

David Mitchell, MAVEN project manager, NASA's Goddard Space Flight Center, discusses the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

Kelly Fast, MAVEN program scientist, NASA Headquarters, discusses the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

David Mitchell, MAVEN project manager, NASA's Goddard Space Flight Center, discusses the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

This illustration depicts charged particles from a solar storm stripping away charged particles of Mars' atmosphere, one of the processes of Martian atmosphere loss studied by NASA's MAVEN mission, beginning in 2014. Unlike Earth, Mars lacks a global magnetic field that could deflect charged particles emanating from the Sun. https://photojournal.jpl.nasa.gov/catalog/PIA22076

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, Joseph Fust, an engineer with United Launch Alliance, left, and Michael Wolfman, agency Vehicle System engineer. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by Dr. Jim Green, the agency's Planetary Science director. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, Joseph Fust, an engineer with United Launch Alliance, left, and Michael Wolfman, agency Vehicle System engineer. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

John Grunsfeld, associate administrator for the Science Mission Directorate, NASA Headquarters, Washington, introduces a panel to discuss the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

John Grunsfeld, associate administrator for the Science Mission Directorate, NASA Headquarters, Washington, discusses the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

Dwayne Brown, NASA Public Affairs Officer, takes a question from a member of the press on theupcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

Jim Green, director, Planetary Science Division, NASA Headquarters, discusses the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, from the left, Lisa May, MAVEN Program executive, Kelly Fast, Mars Program scientist, Sandra Cauffman, deputy project manager at the agency's Goddard Spaceflight Center, in Greenbelt, Md., and Chris Waters, systems design team lead at Lockheed Martin. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, from the left, Lisa May, MAVEN Program executive, Kelly Fast, Mars Program scientist, Sandra Cauffman, deputy project manager at the agency's Goddard Spaceflight Center, in Greenbelt, Md., and Chris Waters, systems design team lead at Lockheed Martin. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, from the left, Lisa May, MAVEN Program executive, Kelly Fast, Mars Program scientist, Sandra Cauffman, deputy project manager at the agency's Goddard Spaceflight Center, in Greenbelt, Md., and Chris Waters, systems design team lead at Lockheed Martin. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. – Chuck Tatro of NASA's Launch Services Program is the Mars Atmosphere and Volatile Evolution, or MAVEN, mission manager. The MAVEN spacecraft is in the background following encapsulation in its payload fairing inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians apply tape to the thermal blanket for the MAVEN spacecraft's parabolic high gain antenna. MAVEN stands for Mars Atmosphere and Volatile Evolution. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare a thermal blanket for installation on the MAVEN spacecraft's parabolic high gain antenna. MAVEN stands for Mars Atmosphere and Volatile Evolution. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station in Florida, the United Launch Alliance Centaur second stage is lifted for stacking atop its Atlas V first stage at Launch Pad 41 in preparation for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: United Launch Alliance

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station's Space Launch Compex-41, NASA Administrator Charles Bolden, at the microphone, along with other agency and contractor officials spoke to members of the news media about preparations for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov. 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In this overhead view at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Centaur second stage is prepared for stacking atop the Atlas V first stage at Launch Pad 41 in preparation for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: United Launch Alliance

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station in Florida, the United Launch Alliance Atlas V first stage is lifted for stacking at Launch Pad 41 in preparation for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: United Launch Alliance

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station in Florida, the United Launch Alliance Centaur second stage is prepared for stacking atop the Atlas V first stage at Launch Pad 41 in preparation for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: United Launch Alliance

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station in Florida, the United Launch Alliance Centaur second stage is prepared for stacking atop the Atlas V first stage at Launch Pad 41 in preparation for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: United Launch Alliance

CAPE CANAVERAL, Fla. – In this overhead view at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Atlas V first stage is prepared for stacking at Launch Pad 41 in preparation for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: United Launch Alliance

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, technicians install the parabolic high gain antenna onto the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft, in the Payload Hazardous Servicing Facility. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft, for installation of the parabolic high gain antenna. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, preparations are under way to install the parabolic high gain antenna, left, onto the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, technicians install the parabolic high gain antenna onto the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft, in the Payload Hazardous Servicing Facility. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, technicians install the parabolic high gain antenna onto the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft, in the Payload Hazardous Servicing Facility. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians use an overhead crane to guide the parabolic high gain antenna into place prior to installation on the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft, to receive its parabolic high gain antenna. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians install a thermal blanket on the parabolic high gain antenna of the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, preparations are under way to install the parabolic high gain antenna, right, onto the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to install the parabolic high gain antenna onto the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the parabolic high gain antenna is installed on the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to position the parabolic high gain antenna for installation on the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft, to receive its parabolic high gain antenna. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, technicians position the parabolic high gain antenna for installation on the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft, in the Payload Hazardous Servicing Facility. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to install the parabolic high gain antenna onto the Mars Atmosphere and Volatile Evolution, or MAVEN spacecraft. The antenna will communicate vast amounts of data to Earth during the mission. MAVEN is being prepared inside the facility for its scheduled November launch aboard a United Launch Alliance Atlas V rocket to Mars. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included Nick Schneider, MAVEN Imaging Ultraviolet Spectrograph, or IUVS, instrument lead at the Laboratory for Atmospheric and Space Physics at the University of Colorado at Boulder. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, Dr. Ellen Stofan, NASA's chief scientist, talks with Bruck Jakosky, left, of the University of Colorado’s Laboratory for Atmospheric and Space Physics. He is the principal investigator for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. On the right is Chuck Tatro of NASA's Launch Services Program who is the MAVEN mission manager. The MAVEN spacecraft can be seen through the window following encapsulation in its payload fairing. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included Nick Schneider, holding a model of the MAVEN spacecraft. He is the Imaging Ultraviolet Spectrograph, or IUVS, instrument lead at the Laboratory for Atmospheric and Space Physics at the University of Colorado at Boulder. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

L-R: Dwayne Brown, NASA Public Affairs Officer, Jim Green, director, Planetary Science Division, NASA Headquarters, Lisa May, MAVEN program executive, NASA Headquarters, Kelly Fast, MAVEN program scientist, NASA Headquarters, Bruce Jakosky, MAVEN principal investigator, University of Colorado Boulder Laboratory for Atmospheric and Space Physics, and David Mitchell, MAVEN project manager, NASA's Goddard Space Flight Center, Greenbelt, Md. discuss the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included Bruce Jakosky, MAVEN principal investigator from the Laboratory for Atmospheric and Space Physics at the University of Colorado at Boulder. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, Dr. Ellen Stofan, NASA's chief scientist, talks with Bruck Jakosky, left, of the University of Colorado’s Laboratory for Atmospheric and Space Physics. He is the principal investigator for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. On the right is Chuck Tatro of NASA's Launch Services Program who is the MAVEN mission manager. The MAVEN spacecraft can be seen through the window following encapsulation in its payload fairing. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

L-R: Jim Green, director, Planetary Science Division, NASA Headquarters, Lisa May, MAVEN program executive, NASA Headquarters, Kelly Fast, MAVEN program scientist, NASA Headquarters, Bruce Jakosky, MAVEN principal investigator, University of Colorado Boulder Laboratory for Atmospheric and Space Physics, and David Mitchell, MAVEN project manager, NASA's Goddard Space Flight Center, Greenbelt, Md. are applauded at the end of a panel discussion on the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at a press conference at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included Bruce Jakosky, MAVEN principal investigator from the Laboratory for Atmospheric and Space Physics at the University of Colorado at Boulder. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, officials outlined the agency’s plans for future human spaceflight, including and expedition to Mars. Participating in the briefing was John Grunsfeld, NASA associate administrator for the Science Mission Directorate. The briefing took place the day prior to launch of the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. For more on NASA Human Spaceflight, visit: http://www.spaceflight.nasa.gov/home/index.html. For information on the international Space Station, visit: http://www.nasa.gov/mission_pages/station/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, officials outlined the agency’s plans for future human spaceflight, including an expedition to Mars. Participating in the briefing was Michael Gazarik, associate administrator for the Space Technology Mission Directorate. The briefing took place the day prior to launch of the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. For more on NASA Human Spaceflight, visit: http://www.spaceflight.nasa.gov/home/index.html. For information on the international Space Station, visit: http://www.nasa.gov/mission_pages/station/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included Michael Meyer, lead Mars Scientist at NASA Headquarters. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, officials outlined the agency’s plans for future human spaceflight, including an expedition to Mars. Participating in the briefing was Ellen Stofan, NASA chief scientist. The briefing took place the day prior to launch of the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. For more on NASA Human Spaceflight, visit: http://www.spaceflight.nasa.gov/home/index.html. For information on the international Space Station, visit: http://www.nasa.gov/mission_pages/station/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Members of the news media ask questions during a news conference at NASA's Kennedy Space Center in Florida. Officials outlined the agency’s plans for future human spaceflight, including an expedition to Mars. The briefing took place the day prior to launch of the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. For more on NASA Human Spaceflight, visit: http://www.spaceflight.nasa.gov/home/index.html. For information on the international Space Station, visit: http://www.nasa.gov/mission_pages/station/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included David Mitchell, MAVEN Solar Wind Electron Analyzer, or SWEA, instrument lead at the University of California at Berkeley. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included Janet Luhmann, MAVEN deputy principal investigator from the University of California at Berkeley. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included David Mitchell, MAVEN Solar Wind Electron Analyzer, or SWEA, instrument lead at the University of California at Berkeley. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a news conference at NASA's Kennedy Space Center in Florida, NASA officials and university investigators outlined science plans for the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Briefing participants included Paul Mahaffy, MAVEN Neutral Gas and Ion Mass Spectrometer, or NGIMS, instrument lead at NASA's Goddard Space Flight Center in Greenbelt, Md. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- Social media participants are given an opportunity to photograph the Atlas V vehicle poised at Cape Canaveral's Space Launch Complex-41 that will boost the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft on a 10-month trip to the Red Planet. They were on hand for the upcoming launch of the MAVEN mission. Their visit included tours of key facilities at the Florida Spaceport and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, Dr. Ellen Stofan, NASA's chief scientist, poses with Bruck Jakosky of the University of Colorado’s Laboratory for Atmospheric and Space Physics. He is the principal investigator for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. The MAVEN spacecraft can be seen through the window following encapsulation in its payload fairing. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, Dr. Ellen Stofan, NASA's chief scientist, talks with Bruck Jakosky of the University of Colorado’s Laboratory for Atmospheric and Space Physics is the principal investigator for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. The MAVEN spacecraft can be seen through the window following encapsulation in its payload fairing. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The University of Colorado's Bruce Jankosky, principal investigator for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission, speaks to a member of the news media. Inside the Payload Hazardous Servicing Facility at the agency's Kennedy Space Center in Florida, MAVEN is going through pre-launch processing. Engineers will soon fold MAVEN's power-generating solar arrays into launch position on either side of the spacecraft's main body. MAVEN is being prepared for its scheduled launch in November from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a Spanish language news conference at NASA's Kennedy Space Center in Florida, agency officials discussed preparations for the launch of the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Participating in the briefing is Sandra Cauffman, deputy project manager at the Goddard Space Flight Center in Greenbelt, Md. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a Spanish language news conference at NASA's Kennedy Space Center in Florida, agency officials discussed preparations for the launch of the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Participating in the briefing is Diana Calero, launch integration engineer in NASA's Launch Services Program at Kennedy. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a Spanish language news conference at NASA's Kennedy Space Center in Florida, agency officials discussed preparations for the launch of the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Participating in the briefing is Jared Espley, project scientist at Goddard Space Flight Center in Greenbelt, Md. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, Dr. Ellen Stofan, NASA's chief scientist, talks with Chuck Tatro of NASA's Launch Services Program. Tatro is mission manager for the Mars Atmosphere and Volatile Evolution, or MAVEN, mission. The MAVEN spacecraft can be seen through the window following encapsulation in its payload fairing. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – During a Spanish language news conference at NASA's Kennedy Space Center in Florida, agency officials discussed preparations for the launch of the Mars Atmosphere and Volatile EvolutioN, or MAVEN, mission. Participating in the briefing, from the left, are Andres Adorno of NASA Public Affairs, Jared Espley, project scientist at Goddard Space Flight Center in Greenbelt, Md., Sandra Cauffman, deputy project manager at Goddard and Diana Calero, launch integration engineer in NASA's Launch Services Program at Kennedy. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For information on the MAVEN mission, visit: http://www.nasa.gov/mission_pages/maven/main/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians perform a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians have just completed a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians perform a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians perform a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians prepare for a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians perform a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

PORT CANAVERAL, Fla. – At Port Canaveral, Fla., NASA and United Launch Alliance managers brief members of the news media on the arrival of the ULA Atlas V rocket that will boost the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft to the Red Planet. From the left, are Chuck Tatro, NASA's MAVEN mission manager, Vernon Thorp, ULA's NASA and Commercial Program manager and Omar Baez, NASA's launch director. MAVEN is being prepared for its scheduled launch in November from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians prepare for a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities. MAVEN is being prepared for its scheduled launch on Nov 18, 2013 from Cape Canaveral Air Force Station, Fla. atop a United Launch Alliance Atlas V rocket. Positioned in an orbit above the Red Planet, MAVEN will study the upper atmosphere of Mars in unprecedented detail. For more information, visit: http://www.nasa.gov/mission_pages/maven/main/index.html Photo credit: NASA/Kim Shiflett