Small, rocky planets can coalesce around a wide variety of stars, suggesting that Earth-like alien worlds may have formed early and often throughout our Milky Way galaxy's history, a new study reveals ...

Recent research suggests that galaxies with high radio emissions—known as “radio-bright” galaxies—could be home to alien civilizations. This idea, explored in Brian C. Lacki’s study Artificial ...

The galaxy has low surface brightness, so the stars in the image's background appear faint and almost hazy. This makes the foreground stars stand out even more, with beaming diffraction spikes ...

I do so love an ostentatious comet. As I wrote in a recent “The Universe” column, when these dusty ice balls are billions of kilometers from the sun, they’re frozen solid. But as they near our star on ...

Add Yahoo as a preferred source to see more of our stories on Google. The Borg queen smiles in Star Trek: First Contact - Paramount Some of the most famous alien races in all of science fiction ...