SciencePlanetary Collision That Created The Moon May Have Brought Life To Earth A collision between Earth and a Mars-sized object 4.4 billion years ago formed the moon. Researchers now propose this same event brought the ingredients of life on Earth.by Allan Adamson
ScienceMars Opportunity Rover May Have Perished 'Honorably' During Dust Storm, Says NASAby Diane Samson
ScienceSplitting Images Of Quasars Helps Researchers Understand Expansion Of The Universeby Diane Samson