New global imaging and topographic data from MESSENGER show that the innermost planet has contracted far more than previous estimates indicated. The results are based on a global study of more than 5,..
Hubble resolved the slow-moving debris of an asteroid that is in the process of breaking up. The asteroid, designated P/2013 R3, hasn't hit anything, as the fragments are moving too slow - it just see..
University of Texas at Austin astronomer Steven Finkelstein has led a team that has discovered and measured the distance to the most distant galaxy ever found. The galaxy is seen as it was at a time j..
Astronomers around the world are closely monitoring Comet ISON's plunge through the inner solar system and awaiting data from a fleet of space telescopes to find out whether the enigmatic chunk of ice..