News tagged with gamma rays

Fermi data tantalize with new clues to dark matter

(Phys.org) —A new study of gamma-ray light from the center of our galaxy makes the strongest case to date that some of this emission may arise from dark matter, an unknown substance making up most of the ...

Apr 03, 2014
4.4 / 5 (27) 8

Birth of black hole kills the radio star

Astronomers led by a Curtin University researcher have discovered a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole.

Dec 20, 2013
4.4 / 5 (19) 6 | with audio podcast

Glimpsing the infrastructure of a gamma-ray burst jet

(Phys.org) —A new study using observations from a novel instrument provides the best look to date at magnetic fields at the heart of gamma-ray bursts, the most energetic explosions in the universe. An international ...

Dec 04, 2013
4.8 / 5 (13) 0 | with audio podcast

NASA sees 'watershed' cosmic blast in unique detail

(Phys.org) —On April 27, a blast of light from a dying star in a distant galaxy became the focus of astronomers around the world. The explosion, known as a gamma-ray burst and designated GRB 130427A, tops ...

Nov 21, 2013
4.9 / 5 (23) 2 | with audio podcast

It's like a party in the atmosphere

Ever attend a wild party with flashing lights and loud music that snowballs into a dazzling moment worth remembering? That's something like how scientists describe the chain reactions in our atmosphere that ...

Nov 07, 2013
5 / 5 (2) 1