A strange flash in a distant galaxy first looked like a familiar kind of stellar wreckage, the radioactive afterglow of ...

Imagine an advanced civilization somewhere in the universe, which developed a particle accelerator that collides electrons at the Planck energy, the scale where gravity must be described quantum ...

The most extreme fireworks in the universe are supposed to follow rules. Gamma-ray bursts, the brightest explosions known, are neatly sorted into categories, each tied to a familiar kind of cosmic ...

(Nanowerk News) In a distant galaxy in the constellation Hercules, a gigantic black hole has torn apart a giant star. This is shown by extensive observations with several observatories, reported by an ...

A dust-cloaked star very much like our sun may have been the site of a cosmic catastrophe involving collisions between asteroids, comets or even planets, scientists reported Wednesday. Astronomers ...

On December 11, 2021, a beam of gamma rays — the most energetic form of light — slammed into NASA’s Swift satellite. Within 120 seconds, the satellite had swiveled toward the blast and spotted the ...

Moscow/Bologna/Halle. The Tunguska catastrophe in 1908 evidently led to high levels of acid rain. This is the conclusion reached by Russian, Italian and German researchers based on the results of ...

NASA's K2 mission finds evidence of dead star vaporizing a mini planet. An artist's rendition shows what a cosmic catastrophe concerning Earth could look like. CfA/Mark A. Garlick — -- A world in ...