Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other ...

NASA has released the latest images of 3I/ATLAS taken by the Hubble as scientists and observers prepare to spot the comet in ...

The universe’s expansion rate was supposed to be a solved problem, yet the latest high precision map of the early cosmos has ...

Keck Observatory reports that spectroscopy from its Keck Cosmic Web Imager, combined with data from NASA’s James Webb and ...

Fly about 2,600 light-years to Hubble Space Telescope imagery of the Cygnus loop nebula. See images from 2001 and 2020.

​Interstellar comet 3I/ATLAS is in the news again after NASA shared a new picture taken by the Hubble Space Telescopeon ...

Hubble images of interstellar object 3I/ATLAS reveal a sunward anti-tail, showing a teardrop-shaped coma with separated ...

Former NASA astronaut Mike Massimino, known for his work on the Hubble Space Telescope and who flew on two space missions, ...

A dramatic new image from NASA's Hubble Space Telescope has intensified scientific debate around the disintegration of ...

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

Fleets of satellites interfere with snapshots taken by Earth-bound observatories. But a new study suggests these orbiters ...

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