At times, the enormous BlueWalker 3 telecommunications satellite is brighter than some of the most iconic stars visible from Earth

They're some of the densest objects in the universe, with nutty internal physics

Transmissions from BlueWalker 3 also pose threat to radio observatories

Astronomers have discovered a mysterious group of giant elderly stars at the heart of the Milky Way that are emitting solar system-sized clouds of dust and gas. The stars, which have been named "old smokers," sat quietly for many years, fading almost to invisibility, before suddenly puffing out vast...

sciencehabit shares a report from Science Magazine: Grunge music: a source of validation for a generation of disaffected youth. And a surprising source of scientific inspiration for Earl Bellinger of the Max Planck Institute for Astrophysics. While listening to Soundgarden's 1994 hit Black Hole Sun ...

Astronomers using the Near-Infrared Camera (NIRCam) onboard the NASA/ESA/CSA James Webb Space Telescope have captured coronagraphic images of the HR 8799 and 51 Eridani planetary systems.

Roger Corman is dead at 98

The James Webb Space Telescope has captured images of the Tarantula Nebula in the Large Magellanic Cloud, revealing stellar nurseries and protostars. The post Tarantula Nebula and baby giant stars in new Webb image first appeared on EarthSky.

Scientists have discovered that the hottest and brightest stars in the cosmos, blue supergiants, are created when two smaller stars spiral together and merge...

How did the most massive stars form? Astronomers have debated their origins for decades.

The light signature from GLASS-z12, one of the most distant galaxies we have ever seen, suggests some of its stars have already exploded as supernovae

Astronomers spotted a new type of aging giant red star that remains quiet for decades before belching out clouds of smoke at the center of the Milky Way.

Scientists have conducted laboratory experiments at Lawrence Livermore National Laboratory (LLNL) that provide new insights on the complex process of pressure-driven ionization in giant planets and stars.

Scientists have conducted laboratory experiments at Lawrence Livermore National Laboratory (LLNL) that provide new insights on the complex process of pressure-driven ionization in giant planets and stars. Their research, published today in Nature, unveils the material properties and behavior of matter under extreme compression, offering important implications for astrophysics and nuclear fusion research.

Astronomers have explored different scenarios to explain the chemical difference found in the remarkable giant-giant binary system HD 138202 + CD-30 12303.

The different ways red giants "sing" could affect distance measurements of the universe, potentially helping soothe a cosmic headache: The Hubble tension.

The cosmic distance ladder could soon have another rung.

Astronomers have measured the occurrence rate for giant planets orbiting low-mass stars and demonstrated this occurrence rate to be non-zero.

The circumstellar envelopes (CSE) of asymptotic giant branch (AGB) stars contain a large number of molecules, which account for about one-third of all molecules discovered in interstellar space.

Astronomers have revealed that the smallest and most common kinds of stars in the universe, called red dwarfs, very rarely host big, Jupiter-like planets. This absence of Jupiter analogs could have major impacts on the development of Earth-like planets around red dwarfs and in the search for worlds capable of supporting alien life.