LADEE, NASA’s Lunar Atmosphere and Dust Environment Explorer, is an unmanned spacecraft that is bringing us back to the moon, by proxy.
The Milky Way galaxy has a number of small satellite, or companion, dwarf elliptical galaxies orbiting it. Many astronomers, however, think that the Milky Way should have more satellite galaxies than it does. A theory recently proposed by Pierre Ocvirk and Dominique Aubert of the Strasbourg Observatory in France tries to explain this shortage. They […]