A slowly rotating stellar halo was the clue to a major and unknown event in the Milky Way's history that saw the spiral disc ...

Positrons—the antimatter counterpart of electrons—are created in high-energy cosmic processes. When normal matter meets its ...

The 20-year 511 keV map from the INTEGRAL gamma-ray space telescope. (Yoneda et al., A&A, 2025) There's something wrong with ...

CAPE CANAVERAL, Fla. (AP) — It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two ...

Durham University researchers find cataclysmic direct hit with Gaia Sausage sent Milky Way into its current position ...

This is the largest high-resolution photo ever made of our Milky Way galaxy's centre in visible light. It was taken on 23 March 2025 by the European Space Agency's Euclid space te ...

(fotograzia/Moment/Getty Images) In the beginning, there was moosh. At the dawn of the Solar System, young Earth was little ...

Mysterious high-speed "bullets"—clumps of possibly oxygen-rich gas traveling at up to 20 million miles per hour—have been ...

For now, however, observing S301 remains a challenge. The center of our galaxy is veiled in cloud and dust, meaning we can’t ...

Cosmic rays are made primarily of protons with a few electrons sprinkled in, and they can reach energies even higher than ...

To spot the Milky Way, look for the Summer Triangle, a shape formed by three bright stars that spans across the Milky Way, ...

North America’s celestial highlights for the week ahead, which also apply to mid-northern latitudes in the northern hemisphere. This week: bright planets at dusk and dawn ...