Fermi Gamma-ray Space Telescope
The Mystery of Cosmic Rays Deepens
Cosmic rays are high-energy particles accelerated to extreme velocities approaching the speed of light. It takes an extremely powerful event…
Colliding Neutron Stars are the Ultimate Particle Accelerators
Gamma-ray telescopes observing neutron star collisions might be the key to identifying the composition of dark matter. One leading theory…
Watch 14 Years of Gamma-Ray Observations in This Fascinating NASA Video
The Fermi Gamma-ray Space Telescope, named in honor of noted physicist Enrico Fermi, has been in operation for almost a…
Fermi has Found More than 300 Gamma-Ray Pulsars
In June 2008, the Gamma-ray Large Area Space Telescope began surveying the cosmos to study some of the most energetic…
Brightest Gamma-ray Burst Shines Light on Milky Way Structure
The brightest gamma-ray burst ever seen in 2022 still puzzles astronomers.
The Universe Sparkles in Gamma Rays in this New NASA Animation
We've come a long way since gamma rays were discovered. The late 1800s and early 1900s were a time of…
Jupiter Could Make an Ideal Dark Matter Detector
So, you want to find dark matter, but you don't know where to look? A giant planet might be exactly…
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…
Dark Matter Could Be A Source of Gamma Rays Coming from the Center of the Milky Way
There's a lot of mysterious goings-on at the center of the Milky Way. The supermassive black hole that resides there…
When it Comes to Gamma Radiation, the Moon is Actually Brighter Than the Sun
The eerie, hellish glow coming from the Moon may seem unreal in this image, since it's invisible to our eyes.…