Stars

More evolved galaxies demonstrate a greater range of stellar motions compared to the orderly, circular orbits of stars like our sun in the Milky Way.

NASA's Chandra X-ray Observatory images the firework-like remnants of the great supernova of 1181.

For many years, binary star research has been as neglected as an old Tamagotchi. But now, the Gaia space telescope is leading a resurgence in interest in binary star systems.

To remain youthful in a cosmic demolition derby around supermassive black hole Sagittarius A*, some cannibalistic stars gruesomely bathe in outer layers of their stellar victims.

Observations for the ULLYSES program, the Hubble Telescope's largest operation yet, are now completed. Scientists are now diving into some cosmic Easter treats.

A tiny grain of dust sealed within an ancient meteorite weaves together the story of the solar system's creation and reveals a much older tale of a rare star's explosive supernova death.

Scientists have measured for the first time the speed of jets launched by neutron star "vampires" as they feast on victim stars. The breakthrough connects these jets to thermonuclear blasts.

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

The Hubble Space Telescope has imaged a powerful jet erupting from an envelope of gas and dust that represents a newly born star announcing itself to the cosmos.

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