Galileo space probe | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-02-18

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Galileo_(spacecraft)


00:02:10 1 Background
00:02:42 2 Mission overview
00:08:37 3 Spacecraft
00:10:00 3.1 Command and Data Handling (CDH)
00:14:47 3.2 Propulsion
00:15:38 3.3 Electrical power
00:19:23 3.4 Instrumentation overview
00:21:09 3.5 Instrumentation details
00:21:25 3.5.1 Despun section
00:21:34 3.5.1.1 Solid State Imager (SSI)
00:22:59 3.5.1.2 Near-Infrared Mapping Spectrometer (NIMS)
00:23:47 3.5.1.3 Ultraviolet Spectrometer / Extreme Ultraviolet Spectrometer (UVS/EUV)
00:24:59 3.5.1.4 Photopolarimeter-Radiometer (PPR)
00:26:10 3.5.2 Spun section
00:26:18 3.5.2.1 Dust Detector Subsystem (DDS)
00:27:18 3.5.2.2 Energetic Particles Detector (EPD)
00:28:18 3.5.2.3 Heavy Ion Counter (HIC)
00:29:10 3.5.2.4 Magnetometer (MAG)
00:30:59 3.5.2.5 Plasma Subsystem (PLS)
00:31:45 3.5.2.6 Plasma Wave Subsystem (PWS)
00:32:33 4 iGalileo/i Probe
00:33:52 5 Jupiter science
00:36:05 6 Other science conducted by iGalileo/i
00:36:16 6.1 Remote detection of life on Earth
00:37:41 6.2 iGalileo/i Optical Experiment
00:40:08 6.3 Lunar observations
00:40:17 6.4 Star scanner
00:42:06 6.5 Asteroid encounters
00:42:15 6.5.1 First asteroid encounter: 951 Gaspra
00:43:26 6.5.2 Second asteroid encounter: 243 Ida and Dactyl
00:44:30 7 Mission challenges
00:44:52 7.1 Radiation-related anomalies
00:47:00 7.2 Main antenna problem
00:50:59 7.3 Tape recorder anomalies and remote repair
00:54:06 7.4 Probe parachute deployment
00:54:34 8 End of mission and deorbit
00:56:16 9 Follow-on missions
00:57:00 9.1 iJuno/i
00:57:21 9.2 Europa Orbiter (canceled)
00:57:56 9.3 Jupiter Icy Moons Explorer
00:58:28 9.4 Europa Multiple Flyby Mission
00:58:54 10 iGalileo/i team
01:00:47 11 Gallery of Jupiter system images
01:00:58 12 See also



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SUMMARY
=======
Galileo was an American unmanned spacecraft that studied the planet Jupiter and its moons, as well as several other Solar System bodies. Named after the Italian astronomer Galileo Galilei, it consisted of an orbiter and an entry probe. It was delivered into Earth orbit on October 18, 1989 by Space Shuttle Atlantis. Galileo arrived at Jupiter on December 7, 1995, after gravitational assist flybys of Venus and Earth, and became the first spacecraft to orbit Jupiter. It launched the first probe into Jupiter, directly measuring its atmosphere. Despite suffering major antenna problems, Galileo achieved the first asteroid flyby, of 951 Gaspra, and discovered the first asteroid moon, Dactyl, around 243 Ida. In 1994, Galileo observed Comet Shoemaker–Levy 9's collision with Jupiter.Jupiter's atmospheric composition and ammonia clouds were recorded, the clouds possibly created by outflows from the lower depths of the atmosphere. Io's volcanism and plasma interactions with Jupiter's atmosphere were also recorded. The data Galileo collected supported the theory of a liquid ocean under the icy surface of Europa, and there were indications of similar liquid-saltwater layers under the surfaces of Ganymede and Callisto. Ganymede was shown to possess a magnetic field and the spacecraft found new evidence for exospheres around Europa, Ganymede, and Callisto. Galileo also discovered that Jupiter's faint ring system consists of dust from impacts on the four small inner moons. The extent and structure of Jupiter's magnetosphere was also mapped.On September 21, 2003, after 14 years in space and 8 years in the Jovian system, Galileo's mission was terminated by sending it into Jupiter's atmosphere at a speed of over 48 kilometers per second (30 mi/s), eliminating the possibility of contaminating local moons with terrestrial bacteria.