It's named Eos, after the Greek goddess of the dawn, and contains approximately 3,400 solar masses worth of gas.

Some people probably believe that the twinkling effect is produced by the stars themselves, but that is not the case at all.

A distant galaxy that lay quiet for decades has suddenly stirred, lighting up in dramatic bursts that have caught astronomers ...

Quasars are some of the brightest light sources in the cosmos ... hole slowly devouring such a small star can accelerate ...

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

Cosmic rays are particles from outer space that travel across the universe. They can be made by the sun, by other stars exploding, and even black holes. They move extremely fast, nearly the speed of ...

This image of the Helix Nebula, released on March 4, 2025, shows a potentially destructive white dwarf at the nebula's center; this star ... X-ray Observatory (magenta), optical light data from ...

A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at ...