Deputy Director Colleen Hartman from NASA Goddard Space Flight Center looks on as Kamal Amiral, 5, of Arlington, Va., looks at the moon through a telescope during a stargazing event at Hoffman-Boston Elementary School in Arlington, Va. on Thursday, Nov. 7, 2013. NASA Administrator Charles F. Bolden is also pictured. Photo Credit: (NASA/Jay Westcott)

Colleen Hartman, director of the Space Studies Board at the National Academy of Sciences gives opening remarks at the Moon to Mars Architecture Workshop, Wednesday, Feb. 12, 2025, at the National Academy of Sciences in Washington. NASA held the workshop to engage the broader space community and collect feedback from U.S. industry and academia and international partners to inform NASA's Moon to Mars Architecture, the agency's roadmap for human exploration of the Moon and Mars. Photo Credit: (NASA/Joel Kowsky)

Colleen Hartman, director of the Space Studies Board at the National Academy of Sciences gives opening remarks at the Moon to Mars Architecture Workshop, Wednesday, Feb. 12, 2025, at the National Academy of Sciences in Washington. NASA held the workshop to engage the broader space community and collect feedback from U.S. industry and academia and international partners to inform NASA's Moon to Mars Architecture, the agency's roadmap for human exploration of the Moon and Mars. Photo Credit: (NASA/Joel Kowsky)

Colleen Hartman, Senior Advisor at NASA Headquarters and Research Professor at George Washington University, makes a point during a press conference, Wednesday, May 4, 2011, to discuss NASA's Gravity Probe B (GP-B) mission which has confirmed two key predictions derived from Albert Einstein's general theory of relativity, which the spacecraft was designed to test at NASA Headquarters in Washington. The experiment, launched in 2004, used four ultra-precise gyroscopes to measure the hypothesized geodetic effect, the warping of space and time around a gravitational body, and frame-dragging, the amount a spinning object pulls space and time with it as it rotates. Photo Credit: (NASA/Paul E. Alers)

Seated from left, Bill Danchi, Senior Astrophysicist and Program Scientist at NASA Headquarters, Francis Everitt, Principal Investigator for the Gravity Probe B Mission at Stanford University, Rex Geveden, President of Teledyne Brown Engineering, Colleen Hartman, a research professor at George Washington University, and Clifford Will, Professor of Physics at Washington University in St. Louis, Mo., conduct a press conference, Wednesday, May 4, 2011, to discuss NASA's Gravity Probe B (GP-B) mission which has confirmed two key predictions derived from Albert Einstein's general theory of relativity, which the spacecraft was designed to test. at NASA Headquarters in Washington. Photo Credit: (NASA/Paul E. Alers)

Colleen Hartman, director of physics, aeronautics, and space science at the National Academies of Science gives closing remarks during an event celebrating the 50th anniversary of the Apollo 17 mission, Wednesday, Dec. 14, 2022, at the National Academies of Science in Washington. The three-astronaut crew of Apollo 17 - commander Eugene Cernan, lunar module pilot Harrison Schmitt, and command module pilot Ronald Evans, embarked on the last mission of the Apollo program to land humans on the Moon in December of 1972. Cernan and Schmitt spent three days on the lunar surface collecting samples and performing scientific experiments before lifting off from the Taurus-Littrow Valley on December 14, 1972. Photo Credit: (NASA/Joel Kowsky)

Colleen Hartman, director of physics, aeronautics, and space science at the National Academies of Science gives closing remarks during an event celebrating the 50th anniversary of the Apollo 17 mission, Wednesday, Dec. 14, 2022, at the National Academies of Science in Washington. The three-astronaut crew of Apollo 17 - commander Eugene Cernan, lunar module pilot Harrison Schmitt, and command module pilot Ronald Evans, embarked on the last mission of the Apollo program to land humans on the Moon in December of 1972. Cernan and Schmitt spent three days on the lunar surface collecting samples and performing scientific experiments before lifting off from the Taurus-Littrow Valley on December 14, 1972. Photo Credit: (NASA/Joel Kowsky)

Colleen Hartman, director of physics, aeronautics, and space science at the National Academies of Science , left, and NASA Administrator Bill Nelson are seen as they view the NASA Art Program Exhibition “Launching the Future: Looking Back to Look Forward” during an event celebrating the 50th anniversary of the Apollo 17 mission, Wednesday, Dec. 14, 2022, at the National Academies of Science in Washington. The three-astronaut crew of Apollo 17 - commander Eugene Cernan, lunar module pilot Harrison Schmitt, and command module pilot Ronald Evans, embarked on the last mission of the Apollo program to land humans on the Moon in December of 1972. Cernan and Schmitt spent three days on the lunar surface collecting samples and performing scientific experiments before lifting off from the Taurus-Littrow Valley on December 14, 1972. Photo Credit: (NASA/Joel Kowsky)

2017 interns participated in a summer poster session at Goddard on August 3,2017. Awards were given to top posters in categories of: computer science/IT, engineering, GSFC functional services and science. Colleen Hartman, Nancy Abell and Juan Ramon presented awards.

2017 interns participated in a summer poster session at Goddard on August 3, 2017. Awards were given to top posters in categories of: computer science/IT, engineering, GSFC functional services, and science. Colleen Hartman, Nancy Abell and Juan Ramon presented awards.

CAPE CANAVERAL, Fla. -- Media representatives question the participants of a Juno prelaunch news conference in the NASA Press Site auditorium at NASA's Kennedy Space Center in Florida. From left are George Diller, NASA Public Affairs; Colleen Hartman, assistant associate administrator, Science Mission Directorate, NASA Headquarters, Washington; Omar Baez, NASA launch director, Kennedy Space Center, Cape Canaveral, Fla.; Vernon Thorp, program manager, NASA Missions, United Launch Alliance, Denver, Colo.; Jan Chodas, Juno project manager, Jet Propulsion Laboratory, Pasadena, Calif.; Tim Gasparrini, Juno program manager, Lockheed Martin Space Systems, Denver, Colo.; and Capt. Billy Whisel, launch weather officer, 45th Weather Squadron, Cape Canaveral Air Force Station, Fla. Juno is scheduled to launch Aug. 5 aboard a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station in Florida. The solar-powered spacecraft will orbit Jupiter's poles 33 times to find out more about the gas giant's origins, structure, atmosphere and magnetosphere and investigate the existence of a solid planetary core. For more information, visit www.nasa.gov/juno. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- A Juno prelaunch news conference is held in the NASA Press Site auditorium at NASA's Kennedy Space Center in Florida. From left are George Diller, NASA Public Affairs; Colleen Hartman, assistant associate administrator, Science Mission Directorate, NASA Headquarters, Washington; Omar Baez, NASA launch director, Kennedy Space Center, Cape Canaveral, Fla.; Vernon Thorp, program manager, NASA Missions, United Launch Alliance, Denver, Colo.; Jan Chodas, Juno project manager, Jet Propulsion Laboratory, Pasadena, Calif.; Tim Gasparrini, Juno program manager, Lockheed Martin Space Systems, Denver, Colo.; and Capt. Billy Whisel, launch weather officer, 45th Weather Squadron, Cape Canaveral Air Force Station, Fla. Juno is scheduled to launch Aug. 5 aboard a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station in Florida. The solar-powered spacecraft will orbit Jupiter's poles 33 times to find out more about the gas giant's origins, structure, atmosphere and magnetosphere and investigate the existence of a solid planetary core. For more information, visit www.nasa.gov/juno. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Media representatives participate in a prelaunch news conference for the Mars Science Laboratory (MSL) in the Press Site auditorium at NASA’s Kennedy Space Center in Florida. From left are NASA Public Affairs Officer George Diller; Colleen Hartman, assistant associate administrator, NASA Science Mission Directorate; Omar Baez, NASA launch director; Vernon Thorp, program manager, NASA Missions, United Launch Alliance; Peter Theisinger, MSL project manager; and Clay Flinn, launch weather officer 45th Weather Squadron, Cape Canaveral Air Force Station, Fla. MSL’s components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 26 from Space Launch Complex-41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – NASA’s Kennedy Space Center in Florida is host to a Mars Science Laboratory (MSL) prelaunch news conference as part of preflight activities for the MSL mission. From left are NASA Public Affairs Officer George Diller; Colleen Hartman, assistant associate administrator, NASA Science Mission Directorate; Omar Baez, NASA launch director; Vernon Thorp, program manager, NASA Missions, United Launch Alliance; Peter Theisinger, MSL project manager; and Clay Flinn, launch weather officer 45th Weather Squadron, Cape Canaveral Air Force Station, Fla. MSL’s components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 26 from Space Launch Complex-41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett