Gamma rays
Is Dark Matter Responsible for Extra Gamma Rays Coming From the Center of the Milky Way?
For years astronomers have puzzled over a strange excess of gamma rays coming from the galactic center. Annihilating dark matter…
A new way to see Inside Neutron Stars
Astronomers study neutron stars using a method made famous by jazz singer Ella Fitzgerald.
Past Supernovae Could be Written Into Tree Rings
A new study by CU Boulder geoscientist Robert Brakenridge shows how nearby supernovae could have disrupted Earth's climate in the…
The Destruction of Dark Matter isn’t Causing Extra Radiation at the Core of the Milky Way
While recent studies suggest that dark matter interactions might create gamma rays, a new study of gamma rays in our…
New Simulation Shows Exactly What Dark Matter Would Look Like If We Could See It
A detailed simulation of dark matter finds that dark matter haloes form in a wide range of sizes.
Gamma-Ray Telescopes Can Measure the Diameters of Other Stars
Four gamma ray telescopes have used a new method of interferometry to measure the size of two stars.
Quasars are the Biggest Particle Accelerators in the Universe
We puny humans think we can accelerate particles? Look how proud we are of the Large Hadron Collider. But any…
Why Pulsars Are So Bright
When pulsars were first discovered in 1967, their rhythmic radio-wave pulsations were a mystery. Some thought their radio beams must…
Gamma Rays Detected Coming From the Crab Nebula
Most people with any interest in astronomy know about the Crab Nebula. It's a supernova remnant in the constellation Taurus,…
Halo Around a Pulsar could Explain Why We See Antimatter Coming from Space
Astronomers have been watching a nearby pulsar with a strange halo around it. That pulsar might answer a question that's…