A Large Tidal Stream Observed In The Sombrero Galaxy

According to the latest cosmological models, large spiral galaxies such as the Milky Way grew by…

Hubble Reveals a ‘Rediscovered’ Star Cluster

Globular clusters are spherical groups of stars held together by gravity; they often contain some of…

Cosmic Rays Help Supernovae Explosions Pack A Bigger Punch

The final stage of cataclysmic explosions of dying massive stars, called supernovae, could pack an up…

Millimeter-tall Mountains On Neutron Stars

New models of neutron stars show that their tallest mountains may be only fractions of millimetres…

Chandra Catches Slingshot During Collision

When the titans of space — galaxy clusters — collide, extraordinary things can happen. A new…

Giant Explosion In Space Illuminates Thousand-year Mystery

Dr. Iair Arcavi, a Tel Aviv University researcher at the Raymond and Beverly Sackler Faculty of…

How The Universe Is Reflected Near Black Holes

In the vicinity of black holes, space is so warped that even light rays may curve…

Galactic Gamma Ray Bursts Predicted Last Year Show Up Right On Schedule

Magnetars are bizarre objects — massive, spinning neutron stars with magnetic fields among the most powerful…

Teardrop Star Reveals Hidden Supernova Doom

Astronomers have made the rare sighting of two stars spiraling to their doom by spotting the…

LHAASO’s Measurement Of The Crab Nebula Brightness Yields A New UHE Gamma-ray Standard

The standard candle is the famous Crab Nebula, which evolved from the “guest star” recorded by…