News tagged with supernova explosion

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Astronomers Find Rare Beast by New Means

(PhysOrg.com) -- For the first time, astronomers have found a supernova explosion with properties similiar to a gamma-ray burst, but without seeing any gamma rays from it. The discovery, using the National ...

Jan 27, 2010
4.8 / 5 (14) 9 | with audio podcast

Why Won't the Supernova Explode?

A massive old star is about to die a spectacular death. As its nuclear fuel runs out, it begins to collapse under its own tremendous weight. The crushing pressure inside the star skyrockets, triggering new ...

Jan 07, 2010
4.4 / 5 (23) 9 | with audio podcast

Cosmic Rays Hit Space Age High

(PhysOrg.com) -- Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA's ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space Age high.

Sep 29, 2009
5 / 5 (16) 4

Very High Energy Gamma Rays

(PhysOrg.com) -- Gamma-rays are the most energetic known form of electromagnetic radiation, with each gamma ray being at least one hundred thousand times more energetic than an optical light photon. The most ...

Sep 25, 2009
4.4 / 5 (14) 3

Black Hole Pumps Iron

(PhysOrg.com) -- This composite image of the Hydra A galaxy cluster shows 10-million- degree gas observed by Chandra in blue and jets of radio emission observed by the Very Large Array in pink. Optical data ...

Sep 14, 2009
4.3 / 5 (15) 6

A Galaxy Collision in Action

This beautiful image gives a new look at Stephan's Quintet, a compact group of galaxies discovered about 130 years ago and located about 280 million light years from Earth. The curved, light blue ridge running ...

Jul 09, 2009
4.7 / 5 (10) 2