Water on the Moon Established by NASA Crashes

There's water on the moon—and a "significant amount" of it, too, members of NASA's recent moon-crash mission, LCROSS, announced today.

In October, NASA crashed a two-ton rocket and the SUV-size LCROSS (Lunar Crater Observation and Sensing Satellite) into the enduringly shadowed crater Cabeus on the moon's South Pole.

The crashes were part of an effort to kick up proof of water on the moon (picture).

(Read more on the LCROSS mission's moon target.)

Despite disappointing many amateur astronomers on Earth, who had been expecting to see a giant plume of lunar dust and ice crystals, the moon-water mission was a success, NASA says. (See NASA 'Moon Bombing' a Hit, But LCROSS Impact Invisible?")

The LCROSS team took the known near-infrared light signature of water and compared it to the impact spectra LCROSS near-infrared recorded after the probe had sent its spent rocket crashing into the moon.

A spectrometer helps identify the composition of materials by examining which wavelengths of light they emit or absorb.

"We got good fits" for the data graphs, said Anthony Colaprete, LCROSS's principal investigator, at today's press discussion at the NASA Ames Research Center in Moffett Field, California.

For more information http://www.nasa.gov/mission_pages/LCROSS/main/prelim_water_results.html