The Atacama Cosmology Telescope in Chile has released its final batch of data after 15 years — and it proves that the Hubble ...

Final data from the Atacama Cosmology Telescope has ruled out 30 models of the universe, sharpening the Hubble tension and ...

NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy ...

Researchers using the James Webb Space Telescope spotted huge stars leaking nitrogen in an early galaxy, hinting that such ...

Our universe is filled with galaxies, in all directions as far as our instruments can see. Some researchers estimate that ...

With construction complete, the telescope will now move into final testing. Following testing, Roman will be packaged and ...

Astronomers at the University of California, Santa Cruz, and UCLA will develop a next-generation instrument for detecting and ...

NASA’s decision to shut down a $1 billion infrared space telescope, even as it continued to send back spectacular images, was ...

On Dec. 15, 1612, the Andromeda galaxy was seen through a telescope for the first time by a German astronomer named Simon Marius. [‘On This Day in Space’ Video Series on Space.com] The Andromeda ...

"A bit like dinosaurs on Earth — they were enormous and primitive. And they had short lives, living for just a quarter of a ...

The Atacama Cosmology Telescope in Chile not only confirmed one of the greatest mysteries in the universe—it also ruled out ...

"The natural question that comes up is: how many more space telescopes will be affected when all these constellations are ...