A bright star visible without a telescope has puzzled X-ray astronomers for decades, producing high-energy radiation that no single-star model could fully explain. New research now traces the ...

New research shows that dark matter has a different distribution in our galaxy than previously thought, and that advances dark matter's status as a potential source of the observed gamma ray excess in ...

Astronomers are trying to understand what caused a series of gamma ray bursts, or GRBs — the most powerful explosions in the universe. These energetic bursts are typically unleashed by the incendiary ...

WASHINGTON, Oct 16 (Reuters) - Scientists may be coming closer to confirming the existence of dark matter - the invisible stuff thought to make up more than a quarter of the cosmos - as they study a ...