News tagged with gamma rays

Firestation: Preparing to study lightning

(Phys.org)—An experiment to study the effects of lightning flashes on Earth's atmosphere has taken its first steps on its journey to space. The Firestation experiment has undergone numerous tests to make ...

Nov 06, 2012
5 / 5 (2) 0

A new class of extragalactic objects

A blazar is a galaxy with an intensely bright central nucleus containing a supermassive black hole, much like a quasar. The difference is that a blazar can emit light with extremely high energy gamma rays ...

Oct 29, 2012
3.9 / 5 (14) 1 | with audio podcast

Largest ever Cherenkov telescope sees first light

(Phys.org) -- On 26 July 2012, the H.E.S.S. II telescope started operation in Namibia. Dedicated to observing the most violent and extreme phenomena of the Universe in very high energy gamma-rays, H.E.S.S. ...

Jul 26, 2012
5 / 5 (9) 7 | with audio podcast

Red Crucifix sighting in 774 may have been supernova

(Phys.org) -- A supernova may have actually been the mysterious "Red Crucifix" in the sky that is cited in the Anglo Saxon Chronicle for the year 774. New correspondence between a university student and Nature carries intere ...

Jun 30, 2012 weblog
4.6 / 5 (12) 10 | with audio podcast