Hubble Views the Galileo Probe Entry Site on Jupiter

Labeled line drawing entitled GALILEO PROBE identifies the deceleration module aft cover, descent module, and deceleration module aeroshell configurations and dimensions prior to and during entry into Jupiter's atmosphere.

Labeled line drawing of Galileo spacecraft's atmospheric probe

(P-19180) Galileo Probe descending into Jupiters atmosphere (artwork)

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STS-34 Galileo processing at KSC's SAEF-2 planetary spacecraft facility

At the Kennedy Space Center's (KSC's) Spacecraft and Assembly Encapsulation Facility 2 (SAEF-2), the planetary spacecraft checkout facility, clean-suited technicians work on the Galileo spacecraft prior to moving it to the Vehicle Processing Facility (VPF) for mating with the inertial upper stage (IUS). Galileo is scheduled for launch aboard Atlantis, Orbiter Vehicle (OV) 104, on Space Shuttle Mission STS-34 in October 1989. It will be sent to the planet Jupiter, a journey which will taken more than six years to complete. In December 1995 as the two and one half ton spacecraft orbits Jupiter with its ten scientific instruments, a probe will be released to parachute into the Jovian atmosphere. NASA's Jet Propulsion Laboratory (JPL) manages the Galileo project. View provided by KSC.

Pioneer Galileo Probe Project press conference for separation of probe from spacecraft

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Artist: Ken Hodges Composite image explaining Objective and Motivation for Galileo Probe Heat Loads: Galileo Probe descending into Jupiters Atmosphere shows heat shield separation with parachute deployed. (Ref. JPL P-19180)

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This mosaic from NASA Galileo Probe is of an equatorial hotspot on Jupiter and shows the features of a hazy cloud layer tens of kilometers above Jupiter main visible cloud deck.

Neptune - Full Ring System

Neptune Bright Crescent

Neptune - Partial Rings

Limb clouds over Triton

Line drawing of the Galileo spacecraft's encounters on its way to Jupiter

Line drawing charts the Galileo spacecraft's launch from low Earth orbit and its three planetary and two asteroid encounters in the course of its gravity-assisted flight to Jupiter. These encounters include Venus (February 1990), two Earth passes (December 1990 and December 1992), and the asteroids Gaspra and Ida in the asteroid belt. Galileo will release a probe and will arrive at Jupiter, 12-07-95.

Jupiter Equatorial Region

This photographic mosaic of images from NASA's Galileo spacecraft covers an area of 34,000 kilometers by 22,000 kilometers (about 21,100 by 13,600 miles) in Jupiter's equatorial region. The dark region near the center of the mosaic is an equatorial "hotspot" similar to the site where the Galileo Probe parachuted into Jupiter's atmosphere in December 1995. These features are holes in the bright, reflective, equatorial cloud layer where heat from Jupiter's deep atmosphere can pass through. The circulation patterns observed here along with the composition measurements from the Galileo Probe suggest that dry air may be converging and sinking over these regions, maintaining their cloud-free appearance. The bright oval in the upper right of the mosaic as well as the other smaller bright features are examples of upwelling of moist air and condensation. These images were taken on December 17, 1996, at a range of 1.5 million kilometers (about 930,000 miles) by the Solid State Imaging camera system aboard Galileo. North is at the top. The mosaic covers latitudes 1 to 19 degrees and is centered at longitude 336 degrees west. The smallest resolved features are tens of kilometers in size. http://photojournal.jpl.nasa.gov/catalog/PIA00604

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CAPE CANAVERAL, Fla. -- At the Kennedy Space Center’s SAEF-2 planetary spacecraft checkout facility, technicians work on the spacecraft Galileo prior to moving it to the Vertical Processing Facility for mating with an Inertial Upper Stage. Galileo is scheduled to be launched aboard Atlantis on space shuttle mission STS-34, Oct. 12, 1989 and sent to the planet Jupiter, a journey which will take more than six years to complete. In December 1995, as the two and one half ton spacecraft orbits Jupiter with its 10 scientific instruments, a probe will be released to parachute into the Jovian atmosphere. Photo Credit: NASA

Jupiter Equatorial Region in a Methane Band Time Set 1

Mosaic of an equatorial "hotspot" on Jupiter at 889 nanometers (nm). The mosaic covers an area of 34,000 kilometers by 11,000 kilometers. Light at 889 nm is strongly absorbed by atmospheric methane. This image shows the features of a hazy cloud layer tens of kilometers above Jupiter's main visible cloud deck. This haze varies in height but appears to be present over the entire region. Small patches of very bright clouds may be similar to terrestrial thunderstorms. The dark region near the center of the mosaic is an equatorial "hotspot" similar to the Galileo Probe entry site. These features are holes in the bright, reflective, equatorial cloud layer where warmer thermal emission from Jupiter's deep atmosphere can pass through. The circulation patterns observed here along with the composition measurements from the Galileo Probe suggest that dry air may be converging and sinking over these regions, maintaining their cloud-free appearance. North is at the top. The mosaic covers latitudes 1 to 10 degrees and is centered at longitude 336 degrees West. The smallest resolved features are tens of kilometers in size. These images were taken on December 17, 1996, at a range of 1.5 million kilometers by the Solid State Imaging system aboard NASA's Galileo spacecraft. http://photojournal.jpl.nasa.gov/catalog/PIA01200

In this movie clip (of which the release image is a still frame), created from images taken by NASA's Cassini spacecraft, the blue region in the center is a relatively cloud-free area where thermal radiation from warmer, deeper levels emerges. NASA's Galileo probe in 1995 entered Jupiter's atmosphere in a similar area. http://photojournal.jpl.nasa.gov/catalog/PIA02875

Jupiter Hot Spot

STS-34 Atlantis - Orbiter Vehicle (OV)-104 - Official Crew Portrait

S89-39803 (July 1989) --- These five astronauts have been assigned to fly the Space Shuttle Atlantis for the mission on which the Jupiter probe, Galileo will be deployed. The mission is scheduled for October of this year. Seated, left to right, are mission specialists Shannon W. Lucid, Ph.D.; Franklin Chang-Diaz, Ph.D.; and Ellen S. Baker, M.D. Standing behind the mission specialists are left, Donald E. Williams, commander; and Michael J. McCulley, pilot.

STS-34 Galileo spacecraft / IUS deployment taken by the IMAX camera

S89-48714 (18 Oct 1989) --- This photograph was taken by the STS-34 crew aboard the Space Shuttle Atlantis and shows the Galileo spacecraft being deployed on Oct. 18, 1989 from the payload bay. Galileo is a scientific craft that will go into orbit around the planet Jupiter and drop a probe into its atmosphere in search of primordial solar system material believed to be present there. The 70mm motion picture film will be used in the forthcoming "Blue Planet," which will address Earth's environmental problems from the perspective of space-based observation and solar system exploration. The film is being produced by IMAX Space Technology Inc. for the sponsor, the Smithsonian Institution, with funding provided by the Lockheed Corporation. PHOTO CREDIT: NASA/Smithsonian Institution

STS-34 Atlantis, Orbiter Vehicle (OV) 104, lifts off from KSC LC Pad 39B

STS034-S-025 (18 Oct 1989) --- The STS-34 Space Shuttle Atlantis lifts off from Launch Pad 39-B at 2:53:39:983 p.m. (EDT), marking the beginning of a five-day mission in space. Atlantis carries a crew of five and the spacecraft Galileo, along with a number of other scientific experiments. The Jupiter-bound probe will be deployed from Atlantis some six hours after launch. The journey to the giant planet is expected to take over six years. Crewmembers for the mission are astronauts Donald E. Williams, Michael J. McCulley, Shannon W. Lucid, Franklin R. Chang-Diaz and Ellen S. Baker. The scene was recorded with a 70mm camera.

Thunderheads on Jupiter

Scientists have spotted what appear to be thunderheads on Jupiter bright white cumulus clouds similar to those that bring thunderstorms on Earth - at the outer edges of Jupiter's Great Red Spot. Images from NASA's Galileo spacecraft now in orbit around Jupiter are providing new evidence that thunderstorms may be an important source of energy for Jupiter's winds that blow at more than 500 kilometers per hour (about 300 miles per hour). The photos were taken by Galileo's solid state imager camera on June 26, 1996 at a range of about 1.4 million kilometers (about 860,000 miles). The image at top is a mosaic of multiple images taken through near-infrared filters. False coloring in the image reveals cloud-top heights. High, thick clouds are white and high, thin clouds are pink. Low-altitude clouds are blue. The two black-and-white images at bottom are enlargements of the boxed area; the one on the right was taken 70 minutes after the image on the left. The arrows show where clouds have formed or dissipated in the short time between the images. The smallest clouds are tens of kilometers across. On Earth, moist convection in thunderstorms is a pathway through which solar energy, deposited at the surface, is transported and delivered to the atmosphere. Scientists at the California Institute of Technology analyzing data from Galileo believe that water, the most likely candidate for what composes these clouds on Jupiter, may be more abundant at the site seen here than at the Galileo Probe entry site, which was found to be unexpectedly dry. http://photojournal.jpl.nasa.gov/catalog/PIA00506

GRAIL Gravity Map of Orientale Basin

This color-coded map shows the strength of surface gravity around Orientale basin on Earth's moon, derived from data obtained by NASA's GRAIL mission. The GRAIL mission produced a very high-resolution map of gravity over the surface of the entire moon. This plot is zoomed in on the part of that map that features Orientale basin, where the two GRAIL spacecraft flew extremely low near the end of their mission. Their close proximity to the basin made the probes' measurements particularly sensitive to the gravitational acceleration there (due to the inverse squared law). The color scale plots the gravitational acceleration in units of "gals," where 1 gal is one centimeter per second squared, or about 1/1000th of the gravitational acceleration at Earth's surface. (The unit was devised in honor of the astronomer Galileo). Labels on the x and y axes represent latitude and longitude. http://photojournal.jpl.nasa.gov/catalog/PIA21050

STS-34 Atlantis, Orbiter Vehicle (OV) 104, lifts off from KSC LC Pad 39B

STS034-S-023 (18 Oct. 1989) --- The STS-34 Space Shuttle Atlantis lifts off from Kennedy Space Centers launch pad 39-B at l2:53:39 p.m. (EDT) on Oct. 18, 1989, marking the beginning of a five-day mission in space. Atlantis carries a crew of five and the spacecraft Galileo. The Jupiter-bound probe will be deployed from Atlantis some six hours after launch. The journey to the giant planet is expected to take over six years. Crewmembers for the mission are astronauts Donald E. Williams, Michael J. McCulley, Shannon W. Lucid, Franklin R. Chang-Diaz and Ellen S. Baker. The scene was recorded with a 70mm camera.

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CAPE CANAVERAL, Fla. -- This orbiter tribute of space shuttle Atlantis, or OV-104, hangs in Firing Room 4 of the Launch Control Center at NASA's Kennedy Space Center in Florida. In the lower-left corner, it features Atlantis soaring above Earth and threaded through the design are the mission patches for each of Atlantis’ flights. Atlantis' accomplishments include seven missions to the Russian space station Mir and several assembly, construction and resupply missions to the International Space Station. Atlantis also flew the last Hubble Space Telescope servicing mission on STS-125. In the tribute, the planet Venus represents the Magellan probe being deployed during STS-30, and Jupiter represents the Galileo probe being deployed during STS-34. The inset photos illustrate various aspects of shuttle processing as well as significant achievements, such as the glass cockpit and the first shuttle docking with Mir during STS-71. The inset photo in the upper-left corner shows a rainbow over Atlantis on Launch Pad 39A and shuttle Endeavour on Launch Pad 39B at Kennedy. Endeavour was the assigned vehicle had Atlantis’ STS-125 mission needed rescue, and this was the last time both launch pads were occupied at the same time. The stars in the background represent the many people who have worked with Atlantis and their contributions to the vehicle’s success. Graphic design credit: NASA/Amy Lombardo

Cassini Spacecraft in a JPL Assembly Room

On October of 1997, a two-story-tall robotic spacecraft will begin a journey of many years to reach and explore the exciting realm of Saturn, the most distant planet that can easily be seen by the unaided human eye. In addition to Saturn's interesting atmosphere and interior, its vast system contains the most spectacular of the four planetary ring systems, numerous icy satellites with a variety of unique surface features. A huge magnetosphere teeming with particles that interact with the rings and moons, and the intriguing moon Titan, which is slightly larger than the planet Mercury, and whose hazy atmosphere is denser than that of Earth, make Saturn a fascinating planet to study. The Cassini mission is an international venture involving NASA, the European Space Agency (ESA), the Italian Space Agency (ASI), and several separate European academic and industrial partners. The mission is managed for NASA by JPL. The spacecraft will carry a sophisticated complement of scientific sensors to support 27 different investigations to probe the mysteries of the Saturn system. The large spacecraft will consist of an orbiter and ESA's Huygens Titan probe. The orbiter mass at launch will be nearly 5300 kg, over half of which is propellant for trajectory control. The mass of the Titan probe (2.7 m diameter) is roughly 350 kg. The mission is named in honor of the seventeenth-century, French-Italian astronomer Jean Dominique Cassini, who discovered the prominent gap in Saturn's main rings, as well as the icy moons Iapetus, Rhea, Dione, and Tethys. The ESA Titan probe is named in honor of the exceptional Dutch scientist Christiaan Huygens, who discovered Titan in 1655, followed in 1659 by his announcement that the strange Saturn "moons" seen by Galileo in 1610 were actually a ring system surrounding the planet. Huygens was also famous for his invention of the pendulum clock, the first accurate timekeeping device. http://photojournal.jpl.nasa.gov/catalog/PIA04603

A Hot Spot on Jupiter

This composite image shows a hot spot in Jupiter's atmosphere. In the image on the left, taken on Sept. 16, 2020, by the Gemini North telescope on the island of Hawaii, the hot spot appears bright in the infrared at a wavelength of 5 microns. In the inset image on the right, taken by Juno's JunoCam visible-light imager, also on Sept. 16 during Juno's 29th perijove pass, the hot spot appears dark. Scientists have known of Jupiter's hot spots for a long time. On Dec. 7, 1995, the Galileo probe likely descended into a similar hot spot. To the naked eye, Jupiter's hot spots appear as dark, cloud-free areas in Jupiter's equatorial belt, but at infrared wavelengths, which are invisible to the human eye, they are extremely bright, revealing the warm, deep atmosphere below the clouds. High-resolution images of hot spots such as these are key both to understanding the role of storms and waves in Jupiter's atmosphere. Citizen scientist Brian Swift processed the images to enhance the color and contrast, with further processing by Tom Momary to map the JunoCam image to the Gemini data. The international Gemini North telescope is a 26.6-foot-diameter (8.1-meter-diameter) optical/infrared telescope optimized for infrared observations, and is managed for the NSF by the Association of Universities for Research in Astronomy (AURA). https://photojournal.jpl.nasa.gov/catalog/PIA24299

Two Views of Jupiter Hot Spot

This composite image shows a hot spot in Jupiter's atmosphere. In the image on the left, taken on Nov. 8, 2020, by NASA's Infrared Telescope Facility (IRTF) on the island of Hawaii, the hot spot appears bright in the infrared. The inset image on the right, taken by the JunoCam visible-light imager (also on Nov. 8, during Juno's 30th perijove pass), the hot spot appears dark and is flanked by high light-colored clouds to the south and a bright white storm to the west. Jupiter's hot spots have been known for a long time. On Dec. 7, 1995, the Galileo probe likely descended into a similar hot spot. To the naked eye, Jupiter's hot spots appear as dark, cloud-free spots in Jupiter's equatorial belt, but at infrared wavelengths, they are extremely bright, revealing the warm, deep atmosphere below the clouds. High-resolution images of hot spots such as these are key to understanding the role of storms and waves in Jupiter's atmosphere and to solving the mystery of Jupiter's elusive water. Citizen scientist Kevin Gill processed the image to enhance the color and contrast, with further processing by Tom Momary to map the JunoCam image to the IRTF data. The NASA IRTF is a 10.5-foot-diameter (3.2-meter-diameter) telescope optimized for infrared observations and is managed for NASA by the Institute for Astronomy at the University of Hawai'i. https://photojournal.jpl.nasa.gov/catalog/PIA24300

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CAPE CANAVERAL, Fla. -- This is a version of space shuttle Atlantis' orbiter tribute, or OV-104, which hangs in Firing Room 4 of the Launch Control Center at NASA's Kennedy Space Center in Florida. In the lower-left corner, it features Atlantis soaring above Earth and threaded through the design are the mission patches for each of Atlantis’ flights. Atlantis' accomplishments include seven missions to the Russian space station Mir and several assembly, construction and resupply missions to the International Space Station. Atlantis also flew the last Hubble Space Telescope servicing mission on STS-125. In the tribute, the planet Venus represents the Magellan probe being deployed during STS-30, and Jupiter represents the Galileo probe being deployed during STS-34. The inset photos illustrate various aspects of shuttle processing as well as significant achievements, such as the glass cockpit and the first shuttle docking with Mir during STS-71. The inset photo in the upper-left corner shows a rainbow over Atlantis on Launch Pad 39A and shuttle Endeavour on Launch Pad 39B at Kennedy. Endeavour was the assigned vehicle had Atlantis’ STS-125 mission needed rescue, and this was the last time both launch pads were occupied at the same time. The stars in the background represent the many people who have worked with Atlantis and their contributions to the vehicle’s success. Graphic design credit: NASA/Amy Lombardo. NASA publication number: SP-2010-08-161-KSC

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CAPE CANAVERAL, Fla. -- This is a version of space shuttle Atlantis' orbiter tribute, or OV-104, which hangs in Firing Room 4 of the Launch Control Center at NASA's Kennedy Space Center in Florida. In 2011, the tribute was updated to reflect the addition of one more Atlantis flight -- STS-135 -- which will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. In the lower-left corner, it features Atlantis soaring above Earth and threaded through the design are the mission patches for each of Atlantis’ flights. Atlantis' accomplishments include seven missions to the Russian space station Mir and several assembly, construction and resupply missions to the International Space Station. Atlantis also flew the last Hubble Space Telescope servicing mission on STS-125. In the tribute, the planet Venus represents the Magellan probe being deployed during STS-30, and Jupiter represents the Galileo probe being deployed during STS-34. The inset photos illustrate various aspects of shuttle processing as well as significant achievements, such as the glass cockpit and the first shuttle docking with Mir during STS-71. The inset photo in the upper-left corner shows a rainbow over Atlantis on Launch Pad 39A and shuttle Endeavour on Launch Pad 39B at Kennedy. Endeavour was the assigned vehicle had Atlantis’ STS-125 mission needed rescue, and this was the last time both launch pads were occupied at the same time. The stars in the background represent the many people who have worked with Atlantis and their contributions to the vehicle’s success. Graphic design credit: NASA/Amy Lombardo. NASA publication number: SP-2010-08-161-KSC

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CAPE CANAVERAL, Fla. -- This orbiter tribute of space shuttle Atlantis, or OV-104, hangs in Firing Room 4 of the Launch Control Center at NASA's Kennedy Space Center in Florida. In 2011, the tribute was updated to reflect the addition of one more Atlantis flight -- STS-135 -- which will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. In the lower-left corner, it features Atlantis soaring above Earth and threaded through the design are the mission patches for each of Atlantis’ flights. Atlantis' accomplishments include seven missions to the Russian space station Mir and several assembly, construction and resupply missions to the International Space Station. Atlantis also flew the last Hubble Space Telescope servicing mission on STS-125. In the tribute, the planet Venus represents the Magellan probe being deployed during STS-30, and Jupiter represents the Galileo probe being deployed during STS-34. The inset photos illustrate various aspects of shuttle processing as well as significant achievements, such as the glass cockpit and the first shuttle docking with Mir during STS-71. The inset photo in the upper-left corner shows a rainbow over Atlantis on Launch Pad 39A and shuttle Endeavour on Launch Pad 39B at Kennedy. Endeavour was the assigned vehicle had Atlantis’ STS-125 mission needed rescue, and this was the last time both launch pads were occupied at the same time. The stars in the background represent the many people who have worked with Atlantis and their contributions to the vehicle’s success. Graphic design credit: NASA/Amy Lombardo. NASA publication number: SP-2010-08-161-KSC

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CAPE CANAVERAL, Fla. -- This is a printable version of space shuttle Atlantis' orbiter tribute, or OV-104, which hangs in Firing Room 4 of the Launch Control Center at NASA's Kennedy Space Center in Florida. In the lower-left corner, it features Atlantis soaring above Earth and threaded through the design are the mission patches for each of Atlantis’ flights. Atlantis' accomplishments include seven missions to the Russian space station Mir and several assembly, construction and resupply missions to the International Space Station. Atlantis also flew the last Hubble Space Telescope servicing mission on STS-125. In the tribute, the planet Venus represents the Magellan probe being deployed during STS-30, and Jupiter represents the Galileo probe being deployed during STS-34. The inset photos illustrate various aspects of shuttle processing as well as significant achievements, such as the glass cockpit and the first shuttle docking with Mir during STS-71. The inset photo in the upper-left corner shows a rainbow over Atlantis on Launch Pad 39A and shuttle Endeavour on Launch Pad 39B at Kennedy. Endeavour was the assigned vehicle had Atlantis’ STS-125 mission needed rescue, and this was the last time both launch pads were occupied at the same time. The stars in the background represent the many people who have worked with Atlantis and their contributions to the vehicle’s success. Graphic design credit: NASA/Amy Lombardo. NASA publication number: SP-2010-08-161-KSC

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CAPE CANAVERAL, Fla. -- This is a printable version of space shuttle Atlantis' orbiter tribute, or OV-104, which hangs in Firing Room 4 of the Launch Control Center at NASA's Kennedy Space Center in Florida. In 2011, the tribute was updated to reflect the addition of one more flight -- STS-135 -- which will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. In the lower-left corner, it features Atlantis soaring above Earth and threaded through the design are the mission patches for each of Atlantis’ flights. Atlantis' accomplishments include seven missions to the Russian space station Mir and several assembly, construction and resupply missions to the International Space Station. Atlantis also flew the last Hubble Space Telescope servicing mission on STS-125. In the tribute, the planet Venus represents the Magellan probe being deployed during STS-30, and Jupiter represents the Galileo probe being deployed during STS-34. The inset photos illustrate various aspects of shuttle processing as well as significant achievements, such as the glass cockpit and the first shuttle docking with Mir during STS-71. The inset photo in the upper-left corner shows a rainbow over Atlantis on Launch Pad 39A and shuttle Endeavour on Launch Pad 39B at Kennedy. Endeavour was the assigned vehicle had Atlantis’ STS-125 mission needed rescue, and this was the last time both launch pads were occupied at the same time. The stars in the background represent the many people who have worked with Atlantis and their contributions to the vehicle’s success. Graphic design credit: NASA/Amy Lombardo. NASA publication number: SP-2010-08-161-KSC

NIMS Observes the Structure and Composition of Jupiter Clouds

With the NIMS instrument high quality observations are being obtained from all parts of Jupiter. The images in the upper panel are taken at a wavelength of 4.8 microns. At this wavelength thermal radiation from about 100 km deep below the visible cloud deck is escaping, allowing us to study the deep atmospheric region. The overlying cloud deck absorbs a part of the radiation, but there are places where it is thin and more radiation can escape. These are called hot spot regions. Many hotspots regions occur in a zone between the equator and 15 degrees north latitude, the North Equatorial Belt (NEB), but thermal radiation is seen from much of the planet. The uniqueness of NIMS is that it is capable of observing the same spatial region at a maximum of 408 different wavelengths between 0.7 and 5.2 micron simultaneously. Every picture element (pixel) contains a spectrum of up to 408 wavelengths. The gases that compose the atmosphere leave there traces in the spectra. In this particular case, 48 wavelengths were available between 4.6 and 5.2 micron, and we see spectral signatures of water, ammonia, and phosphine. Also, the total amount of radiation is determined by the amount of overlying cloud, characterized by the cloud opacity. By means of model calculations, we can determine the amount of water and the cloud opacity for each individual spectrum. The amount ammonia and phosphine is more difficult to obtain because its influence on the spectra is weaker. The results of these calculations are shown in the form of maps in the next two panels. With NIMS, we can now have a detailed look at the spatial distribution of the water and ammonia amounts and the cloud opacity in the atmosphere. Not all the pixels from the observations have good spectra, so for some data points no reliable determination of the water and cloud opacity could be made. We find that the atmosphere is extremely dry in, and close to, the hot spot, with relative humidities between 0.02 % and 10 %, with the dryest places being inside the hot spot. This corroborates the in-situ Galileo Entry Probe measurements. The Probe entered the atmosphere, on December 5 1995, in a hot spot region. Whereas the Probe obtained only a very localized snapshot, with NIMS we can do observations of larger areas and over longer periods. The spatial distribution of water is more complex than expected. More detailed investigations will be necessary to fully understand these results. http://photojournal.jpl.nasa.gov/catalog/PIA01224