The addition of three more spaceflyers on Dec. 23 will double the population of the orbiting lab, bringing it back up to full operational strength after a month at skeleton-crew levels.
The uncontrolled tumble of Phobos-Grunt into Earth's atmosphere is being eyed as a possible way to sharpen computer tools to more accurately calculate re-entry predictions.
Comet Lovejoy hurtled through the sun's corona Thursday, and astounded skywatchers by coming out the other side. Here's how Comet Lovejoy survived.
The ill-fated comet Lovejoy is on course to plow through the sun's blisteringly hot outer atmosphere - called the corona - making its closest approach to our star at around 7 p.m. EST Thursday.
Scientists hit "rewind" to discover how white dwarfs play a role in the evolution of a supernova.
Stratolaunch Systems continues a trend for Paul Allen, who has funded several different spaceflight and astronomy efforts over the years.
Microsoft co-founder Paul Allen announced plans to construct a giant aircraft to launch rockets into orbit, eventually for paying passengers.
The annual Geminid meteor shower peaks tonight, eager skywatchers may experience chilly temperatures.
Saturday's lunar eclipse promises to make the moon appear supersized and bright red for skywatchers in the Western United States and Canada.
NASAs Opportunity Mars rover, which landed on the red planet nearly eight years ago, has discovered a mineral vein that was almost certainly deposited by water billions of years ago.