News tagged with gamma rays

Explained: rad, rem, sieverts, becquerels

Sometimes it must seem as though reports on releases of radioactive materials from Japan’s Fukushima Daiichi nuclear powerplant in the wake of the devastating earthquake and tsunami are going out of their ...

Mar 28, 2011 4.7 / 5 (3) 1

Rare observation of cosmic explosion

Gamma ray bursts, which are the most powerful bursts of radiation in the universe, have now been observed in direct connection with an exploding giant star - a supernova. Researchers from the Niels Bohr Institute ...

Mar 10, 2011 5 / 5 (10) 8 | with audio podcast