Editing Galileo project (section)

===Spacecraft===
{{main|Galileo (spacecraft)|l1=''Galileo'' (spacecraft)}}
JPL built the Galileo spacecraft and managed the Galileo program for NASA, but West Germany's [[Messerschmitt-Bölkow-Blohm]] supplied the propulsion module, and Ames managed the atmospheric probe, which was built by the [[Hughes Aircraft Company]]. At launch, the orbiter and probe together had a mass of {{convert|2562|kg|lb|abbr=on}} and stood {{convert|6.15|m|ft|abbr=on}} tall. There were twelve experiments on the orbiter and seven on the atmospheric probe. The orbiter was powered by a pair of [[GPHS-RTG|general-purpose heat source radioisotope thermoelectric generator]]s (GPHS-RTGs) fueled by [[plutonium-238]] that generated 570&nbsp;watts at launch. The atmospheric probe had a [[lithium–sulfur battery]] rated at 730&nbsp;watt-hours.{{efn|A 12-Volt car battery has about 600 Watt-Hours.<ref>{{cite web |title=How Many Watt Hours in a Car Battery |publisher=Large Power |url=https://www.large.net/news/90u43pm.html |access-date=13 April 2024 |archive-date=April 9, 2024 |archive-url=https://web.archive.org/web/20240409192148/https://www.large.net/news/90u43pm.html |url-status=live }}</ref>}}<ref name="Press Kit" />

Probe instruments included sensors for measuring atmospheric temperature and pressure. There was a [[mass spectrometer]] and a [[helium]]-abundance detector to study atmospheric composition, and a [[Whistler (radio)|whistler]] detector for measurements of lightning activity and Jupiter's radiation belt. There were magnetometer sensors, a plasma-wave detector, a [[high-energy particle]] detector, a [[cosmic dust|cosmic]] and Jovian dust detector, and a [[heavy ion]] counter. There was a [[near-infrared spectroscopy|near-infrared mapping spectrometer]] for [[multispectral images]] for atmospheric and moon surface chemical analysis, and an [[ultraviolet–visible spectroscopy|ultraviolet spectrometer]] to study gases.<ref name="Press Kit">{{cite web |url=http://www.jpl.nasa.gov/news/press_kits/gllarpk.pdf |title=Galileo Jupiter Arrival |type=Press Kit |publisher=NASA{{\}}Jet Propulsion Laboratory |date=December 1995 |access-date=December 22, 2016 |archive-date=November 16, 2001 |archive-url=https://web.archive.org/web/20011116223923/http://www.jpl.nasa.gov/news/press_kits/gllarpk.pdf |url-status=live }}</ref>