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Sleeping black hole awakens to devour doomed star
A black hole chowed down on a doomed star as scientists watched.
By Charles Q. Choi
The basic ingredients for life have been found in a comet's atmosphere
This supports the idea that comets could have played an essential role in the development of life on early Earth.
By Sarah Lewin
Ancient mega tsunamis on Mars are newest clues to past life
These killer waves might have been triggered by giant meteor impacts.
By Charles Q. Choi
How dying stars could turn frozen worlds into habitable planets
Once-frozen planets can become habitable when their parent stars expand into massive red giants.
By Calla Cofield
NASA satellites find trigger for magnetic explosions near Earth for first time
A fleet of NASA spacecraft has for the first time directly witnessed the mysterious way in which these magnetic explosions occur.
By Charles Q. Choi
Scared of an alien invasion? This cloaking device could help protect us.
A simple laser beam could disrupt aliens' observations of Earth, making it look like there's nobody home on the third rock from the sun, a new study suggests.
By Sarah Lewin
Scientists discover 3 suns in this alien planet's sky
Eat your heart out, Tatooine: A newly discovered alien planet has not one, not two, but three suns in its sky.
By Nola Taylor Redd
'Mars World' may soon make all your red planet fantasies come true
An otherworldly tourist attraction could be coming to Sin City a few years from now.
By Elizabeth Howell
Ice near the lunar north and south poles show a shift in the moon's axis
The moon's poles have shifted over the eons, likely as a result of geological activity beneath the lunar crust, a new study suggests.
By Mike Wall
A lunar eclipse will darken the moon Wednesday
Earth's shadow will darken part of the moon Wednesday morning in a lunar eclipse that will be visible from much of the globe, including central and western North America.
By Mike Wall
Next stop, Mars: Spacecraft takes off to hunt for signs of life
The first phase of the European-Russian ExoMars program started its seven-month journey to the red planet today.
By Mike Wall
