The PRIMA space telescope would observe the cosmos in far-infrared light, while AXIS would be an orbiting X-ray detector.

Determining the expansion rate of the universe, the "Hubble constant," shapes our understanding of the cosmos, its age, and its fate.

NASA This image captures a pair of interacting galaxies which are known as MCG+05-31-045. These galaxies are located 390 ...

Astronomers have discovered mysterious, Earth-sized dark spots at Jupiter’s poles that appear and disappear unpredictably.

The New Scientist's two-day discovery event featured stargazing, 'fascinating' talks and a tour of the UK's largest radio ...

Brian Greene (Cosmic String Theory) and Astrophysicist Ethan Siegel have collaborated on a National Geographic coffee-table ...

New images show the rapidly rotating pulsar of the "Guitar Nebula" shooting out a gigantic cosmic plume of plasma, X-rays and ...

Astronomers at UC Berkeley have identified mysterious Earth-sized spots at Jupiter’s poles with rapid life cycles.

The Great Red Spot is not the only Earth-sized atmospheric disturbance seen on Jupiter. That dramatic storm remains number ...

The dark UV ovals were first spotted by NASA’s Hubble spacecraft in the late 1990s, but have only recently been studied in ...

This Hubble image, captured with the Wide Field Camera 3, shows NGC 1866, a star cluster made up of hundreds of thousands of stars bound by gravity. The image shows two massive stars, WR 25 and ...

The sharp resolution of Webb’s MIRI (Mid-Infrared Instrument) also brings into focus details of the galaxy’s outer ring, ...