The fifth day of the 18th annual Space Telescope Advent Calendar features a close view of a distant and colorful spiral ...

Astronomers using the Subaru Telescope in Hawaiʻi have discovered a massive planet and a brown dwarf orbiting distant stars.

The sixth day of the 18th annual Space Telescope Advent Calendar features the final act of a star near the end of its life.

The most distant known star in the universe is no longer a faint, anonymous point of light. With the James Webb Space ...

Researchers have discovered a large, orderly spiral galaxy that formed soon after the Big Bang, when space was only about 1.5 ...

Using the James Webb Space Telescope, astronomers have detected unexpected high-energy ultraviolet radiation around five ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

The discovery of two remarkable substellar companions orbiting distant stars has been announced by an international team of ...

A 'prelude to a supernova' is how NASA describes this stunning new James Webb Space Telescope image of Wolf-Rayet Star WR 124 ...

Using the Webb telescope’s powerful Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, the team detected a ...

NASA 's James Webb Space Telescope has revealed that an exceptionally rare star duo in the Milky Way has a third companion — ...

The final integration of the telescope's major observatory components took place on Nov. 25 inside NASA's Goddard Space ...