This Just In
If alien life does exist, scientists aren't sure what it would look like, but one cosmologists says such extraterrestrial creatures will be big — nearly 660 lbs. (314 kilograms), says a cosmologist who bases the estimate on statistics.
By tracking the phases of six exoplanets, astronomers have tracked their daily weather cycles for the first time.
Salt from an underground sea on Jupiter’s moon Europa may be seeping onto the surface, then darkening as it is exposed to radiation.
A wide-ranging search of faraway galaxies has turned up no obvious signs of advanced alien civilizations.
Observations by NASA's Spitzer Space Telescope have revealed wild atmospheric changes on a well studied exoplanet -- changes that could be driven by extreme volcanic activity.
Astronomers have discovered two new alien worlds a bit larger than Earth circling a nearby star.
What has Antarctica and Mars got in common? Mineral deposits from a briny subsurface aquifer suggest bacteria are hiding under the barren Antarctic landscape -- can the same be said for the red planet?
Astronomers have detected an exoplanet's visible-light spectrum directly for the first time ever, a milestone that could help bring many other alien worlds into clearer focus down the road.
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