At the moment within the historical past of astronomy, the mission that can affirm ice on the Moon begins.
This artist’s depiction reveals Lunar Prospector simply earlier than it was deliberately crashed into the Moon. Credit score: NASA/Ames
- Lunar Prospector launched on January 6, 1998, because the third mission inside NASA’s Discovery Program, which emphasizes frequent, cost-effective photo voltaic system investigations.
- The mission’s major goals have been to map the lunar floor composition, seek for polar water ice, and analyze the Moon’s magnetic and gravitational fields.
- The compact spacecraft was comparatively cheap at roughly $65 million, using steady information obtain to Earth in lieu of in depth onboard storage.
- Vital scientific outcomes included the primary proof of water ice on the Moon’s poles and a worldwide map of rock sorts, previous to its deliberate affect into Shoemaker Crater in July 1999.
NASA’s Discovery Program, begun within the Nineteen Nineties and persevering with at present with missions like Lucy and Psyche, is targeted on frequent, cost-effective investigations of our photo voltaic system. Its first mission launched in 1996 to near-Earth asteroid Shoemaker; the second mission was the Mars Pathfinder mission, additionally launched in 1996. On Jan. 6, 1998, the third mission of the Discovery Program launched: Lunar Prospector.
With objectives of mapping the lunar floor composition, trying to find water ice on the poles, and analyzing its magnetic and gravitational fields, the spacecraft arrived on the Moon on Jan. 15. The craft itself was solely about 4 ft tall and 4.5 ft in diameter, with three 8-foot booms that housed its devices. It was additionally comparatively cheap, with a last value round $65 million; as a money-saving step, there was no onboard laptop and storage was restricted. As an alternative, Lunar Prospector frequently downloaded its information to Earth.
The mission outcomes included the primary proof of ice on the Moon’s poles and a worldwide map of rock sorts. When the mission concluded in July 1999, the spacecraft was intentionally crashed into Shoemaker Crater. Although it was a protracted shot, scientists hoped this affect would produce a plume of water vapor. Nonetheless, nothing was seen. (It did accomplish the primary off-Earth “burial,” although – the spacecraft had been carrying the cremains of geologist Eugene Shoemaker.)
