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

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

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

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

Dusty stars close to the Milky Way’s black hole stay stable for years. New infrared data shows they survive gravity and ...

Astronomers have captured images of two stellar explosions—known as novae—within days of their eruption and in unprecedented ...

"We really needed the sensitivity of JWST. We also needed the 100 times magnification from gravitational lensing from a galaxy cluster between us and LAP1-B." ...

For the first time, astronomers have captured clear, detailed images of two stars explosions just days after their eruption.