Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

A nearby active galaxy called VV 340a offers a dramatic look at how a supermassive black hole can reshape its entire host.

"We want to have epic, futuristic spaceships with lots of people in them," Elon Musk said at a Texas SpaceX presentation.

Elon Musk told a crowd at SpaceX’s Texas facility that he wants to turn “Star Trek” into reality. Speaking just days before ...

Its influence can be seen in storytelling, character dynamics and even the optimism that defines much of modern sci-fi. Star ...

A new study reveals a rare-breaking white dwarf star, dubbed RXJ0528+2838, that is somehow generating a rainbow-like "bow ...

Skygazers have been waiting for over a year to see a recurrent nova that creates a temporary, super-bright star every 80 years or so. A new study suggests that it could finally happen this week — but ...

No matter how old audiences get, there’s no doubt that they always wish and hope that some aspects of the Star Wars galaxy ...

Some 7,500 light-years from Earth lurks a zombie star cloaked in long tendrils of hot sulfur. Nobody knows how those tendrils formed. But astronomers now know where they’re going. New observations, ...

"Star Trek" has always been at the forefront of social commentary and never afraid of tough topics, but these 10 episodes ...

Just 48 short years ago, movie director George Lucas used the phrase "A long time ago in a galaxy far, far away" as the opening to the first "Star Wars" movie, later labeled "Episode IV: A New Hope." ...