Gamma rays

Moonlight Is a Many-Splendored Thing

"By the Light of the Silvery Moon" goes the song. But the color and appearance of the Moon depends upon the particular set…

8 years ago

Where Have All the Pulsars Gone? The Mystery at the Center of Our Galaxy

The galactic center is a happening place, with lots of gas, dust, stars, and surprising binary stars orbiting a supermassive black…

8 years ago

Radio Telescopes Help Astronomers Tune In To Nova Generated Gamma Rays

Over two years ago, the Fermi-LAT Collaboration observed an "ear and eye opening" event - the exact location where a…

8 years ago

Surprise! Classical Novae Produce Gamma Rays

In a classical nova, a white dwarf siphons material off a companion star, building up a layer on its surface…

8 years ago

Observing Alert: Distant Blazar 3C 454.3 in Outburst, Visible in Amateur Telescopes

Have an 8-inch or larger telescope? Don't mind staying up late? Excellent. Here's a chance to stare deeper into the…

8 years ago

Weekly Space Hangout – January 10, 2014: Wake Up, Rosetta! & Top Stories from AAS

Host: Fraser Cain Guests: David Dickinson, Amy Shira Teitel, Scott Lewis, Brian Koberlein, special guest Ruth McAvinia from the ESA…

8 years ago

Navy Researchers Put Dark Lightning to the SWORD

Discovered "by accident" by NASA's Fermi Gamma-ray Space Telescope in 2010, dark lightning is a surprisingly powerful -- yet invisible…

9 years ago

Bright Blazar’s Emission Defies Explanations

When it comes to sheer wattage, blazars definitely rule. As the brightest of active galactic nuclei, these sources of extreme…

9 years ago

Black Holes, Fermi Bubbles and the Milky Way

Deep at the heart of our galaxy lurks a black hole. This isn't exciting news, but neither is it a…

9 years ago

Cosmic Rays and Exploding Stars

Scientists have known about cosmic rays for a century. But these high-energy subatomic particles, which stream through space at nearly…

9 years ago