The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

Shaped like a megaphone, the upcoming mission will map the entire sky in infrared light to answer big questions about the ...

Mysterious little red dots threatened to overhaul modern cosmology—but new research may have solved the celestial conundrum.

The SPHEREx comprises two main sections — the bottom half is the spacecraft with the onboard computer, telecom system, solar ...

The Hubble Space Telescope has produced the most comprehensive survey of the Andromeda galaxy, revealing new clues about its ...

A team of astronomers sifted through James Webb Space Telescope data from multiple surveys to compile one of the largest ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

Around 2015, astronomers took on the painstaking task of stitching together Hubble Space Telescope images of this galaxy, but that effort had focused on the galaxy's northern half. Still, however, the ...