12/09/2013 - 09:51

A massive impact on the Moon about 4 billion years ago left a 2,500-mile crater, among the largest known craters in the solar system. Smaller subsequent impacts left craters within that crater. Comparing the spectra of light reflected from the peaks of those craters may yield clues to the composition of the Moon’s lower crust and mantle — and would have implications for models of how the Moon formed.


09/06/2013 - 23:55

The Lunar Atmosphere and Dust Environment Explorer (LADEE) is headed toward the moon after launching  on a Minataur V rocket Friday night from NASA's Wallops Flight Facility in Virginia. The mission will study the lunar atmosphere, conditions near the surface and environmental influences on lunar dust.


05/10/2013 - 11:29

Researchers used a multicollector ion microprobe to study hydrogen-deuterium ratios in lunar rock and on Earth. Their conclusion: The Moon’s water did not come from comets but was already present on Earth 4.5 billion years ago, when a giant collision sent material from Earth to form the Moon.


04/02/2013 - 12:36

 Large impacts on the Moon can form wide craters and turn surface rock liquid. Geophysicists once assumed that liquid rock would be homogenous when it cooled. Now researchers have found  evidence that pre-existing mineralogy can survive impact melt.


10/17/2012 - 14:06

It’s a big claim, but Washington University in St. Louis planetary scientist Frédéric Moynier says his group has discovered evidence that the Moon was born in a flaming blaze of glory when a body the size of Mars collided with the early Earth.

07/30/2012 - 13:13

“We see landslides everywhere in the solar system,” says Kelsi Singer, graduate student in earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, “but Saturn’s icy moon Iapetus has more giant landslides than any body other than Mars.”