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Galileo's top 10 science results FROM NASA PRESS KIT Posted: September 20, 2003 1. The descent probe measured atmospheric elements and found that their relative abundances were different than on the Sun, indicating Jupiter's evolution since the planet formed out of the solar nebula. 2. Galileo made a first observation of ammonia clouds in another planet's atmosphere. The atmosphere seems to create ammonia ice particles of material from lower depths, but only in "fresh" clouds. 3. Io's extensive volcanic activity may be 100 times greater than that found on Earth's. The heat and frequency of eruption are reminiscent of early Earth. 4. Io's complex plasma interactions in Io's atmosphere include support for currents and coupling to Jupiter's atmosphere. 5. Evidence supports a theory that liquid oceans exist under Europa's icy surface. 6. Ganymede is the first satellite known to possess a magnetic field. 7. Galileo magnetic data provide evidence that Europa, Ganymede and Callisto have a liquid-saltwater layer. 8. Europa, Ganymede, and Callisto all provide evidence of a thin atmospheric layer known as a 'surface-bound exosphere'. 9. Jupiter's ring system is formed by dust kicked up as interplanetary meteoroids smash into the planet's four small inner moons. The outermost ring is actually two rings, one embedded with the other. 10. Galileo was the first spacecraft to dwell in a giant planet magnetosphere long enough to identify its global structure and to investigate its dynamics. Technical firsts
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Goodbye Galileo Timeline - Times and descriptions of Galileo's descent into Jupiter. Entry preview - Story on Galileo's demise. Mission overview - A look back at Galileo's voyage. Spacecraft - A technical review of the Galileo spacecraft. Hubble Posters Stunning posters featuring images from the Hubble Space Telescope and world-renowned astrophotographer David Malin are now available from the Astronomy Now Store.
An insider's view of how Apollo flight controllers operated and just what they faced when events were crucial.U.S. Apollo 12 tribute DVD set ![]() New! Featuring the jovial crew of Pete Conrad, Dick Gordon and Alan Bean, the Apollo 12 mission was struck by lightning shortly after liftoff but proceeded on the second successful exploration voyage to the lunar surface. This three-disc DVD brings the mission to life with extraordinary detail. U.S. - U.K. - E.U. - Worldwide Fallen Heroes special patch This special 12-inch embroidered patch commemorates the U.S. astronauts who made the ultimate sacrifice, honoring the crews of Apollo 1, Challenger and Columbia.U.S. - U.K. - E.U. - Worldwide Women in Space Women of Space: Cool Careers on the Final Frontier is for girls, young women, and anyone else interested in learning about exciting careers in space exploration. Includes CD-ROM.U.S. - U.K. - E.U. - Worldwide Mars rover poster This new poster features some of the best pictures from NASA's amazing Mars Exploration Rovers Spirit and Opportunity.U.S. Get e-mail updates Sign up for our NewsAlert service and have the latest news in astronomy and space e-mailed direct to your desktop (privacy note: your e-mail address will not be used for any other purpose). Apollo 16 NEW! The latest in Apogee Book's acclaimed NASA Mission Reports series features the Apollo 16 expedition to the lunar highland area of Descartes . Includes CD-ROM. |
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