ScienceThe ghost of stars past? Long-dead galaxies haunt Hubble Hubble telescope spots "ghost light" of stars ripped from their host galaxies billions of years ago. Such orphan stars are the result of cosmic collisions between galaxies, astronomers say.by Jim Algar
ScienceMIT planetary scientist has bizarre plan of sending humans to Mars: Use asteroids as stepping stonesby Aaron Mamiit
ScienceNASA's Hubble Space Telescope spots ghost light from stars of long-dead galaxies in Pandora's Clusterby Aaron Mamiit
ScienceFailure to launch: A look at past rocket disasters in light of the Antares explosionby James Maynard
ScienceOrbital Sciences' Antares rocket goes KABOOM moments after liftoff: No injuries but Cygnus cargo spacecraft destroyedby Rhodi Lee
ScienceAntares rocket's explosion, Russia's success: What was lost in the destruction?by Rebecca Kaplan