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.
Astronomers using the Hubble Space Telescope say the star nicknamed Nasty 1 (Miss Jackson if...) doesn't behave like a typical star of its kind. Hence its bad-boy image and name.
There's reason to believe that other planets might be better for supporting life as we know it, and they might not even be that far off, cosmically speaking.
Scientists pull a needle out of a haystack and identify a star that dates back to shortly after the Big Bang.
The Giant Magellan Telescope will be the world's biggest telescope -- and it will look deeper into the past than we've ever seen before.
A giant planet 11 times the mass of Jupiter has been directly photographed, the closest such planet to Earth we've seen with our own eyes.
The distance to a super-bright galaxy has been exactly calculated, setting a 13-billion light-year record as the most distant galaxy ever seen (that we know of).
The sun engaged in some spectacular celestial fireworks this week when an enormous solar filament erupted out into space.