Gamma rays

Cygnus X – A Cosmic-ray Cocoon

[/caption] Situated about 4,500 light-years away in the constellation of Cygnus is a veritable star factory called Cygnus X... one…

10 years ago

Positron Signaling For Dark Matter Inconclusive

[/caption] A couple of years ago, the Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics, PAMELA, sent us back some…

10 years ago

The Crab Gets Cooked With Gamma Rays

[/caption] It's one of the most famous sights in the night sky... and 957 years ago it was bright enough…

10 years ago

Crab Nebula Flares

[/caption] The Crab Nebula is one of the most popular targets for astronomers of all stripes. It is readily viewable…

11 years ago

What Are Gamma Rays

[/caption] In the universe there are kinds of energy and different ways it manifests itself. One common form is radiation.…

11 years ago

Electron Volt

[/caption] From the name, electron volt, you might guess that this has something to do with electricity. Well, you'd be…

12 years ago

New Pulsar “Clocks” Will Aid Gravitational Wave Detection

This illustration shows a pulsar's magnetic field (blue) creates narrow beams of radiation (magenta). Image credit: NASA How do you…

12 years ago

Gamma Waves

"Gamma wave" is not, strictly speaking, a standard scientific term … at least not in physics, and this is rather…

12 years ago

Einstein Still Rules, Says Fermi Telescope Team

[/caption] While the Fermi Space Telescope has mapped the gamma ray sky with unprecedented resolution and sensitivity, it now has…

12 years ago

What is Cherenkov Radiation?

Cherenkov radiation is named after the Russian physicist who first worked it out in detail, in 1934, Pavel Alekseyevich Cherenkov…

12 years ago