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

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 ...

It’s a powerful technique, but small uncertainties at each step can add up, something critics argue may be behind the Hubble ...

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

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

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

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 ...

According to NASA, Hubble took its latest photo of 3I/ATLAS on November 30 using its Wide Field Camera 3 instrument. At that ...

A new NASA-led study found that the increasing number of satellites in low-Earth orbit could ruin up to 96% of images from ...