A surprising find has researchers thinking that they may have discovered a "Solar System 2.0."
Astronomers have found the very first quintuple star system consisting of two sets of eclipsing binary stars and one solo star.
By using the world's preeminent telescopes, astronomers peer behind a curtain of dust to find a giant star-making factory known as "Sparky."
A giant star in the Canis Majoris constellation isn't acting like itself, and scientists are doing their best to figure out why.
Speaking to Congress, two astronomers from SETI describe the chances of finding aliens as almost 100 percent.
Where there's water in the universe, there might be life. SEPIA, an instrument mounted on a telescope in the Chilean desert, might help astronomers find both.
Technically Incorrect: It's about bigness and about the stylus -- I mean, the pencil -- in Apple's new "great big universe."
A story that went viral this week reports that astronomers finally found E.T., but those aren't the facts. CNET's Eric Mack talks with the astronomers involved about what is still a very interesting star.
The distinctive green comet is releasing a large amount of alcohol into space, although probably not anything you'd actually want to drink.
Last week news broke of something strange orbiting a distant star, raising the remote possibility of an alien civilization. CNET's Eric Mack spoke with the SETI Institute to see how the search is going.