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…
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…
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…
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…
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…
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…
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…
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…
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…
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…