Add Yahoo as a preferred source to see more of our stories on Google. A deep purple spiral galaxy is seen head-on, and a small bright dot toward the top of this spiral has been highlighted and circled ...

At the center of our galaxy, there’s a mysterious, diffuse glow given off by gamma rays — powerful radiation usually emitted by high-energy objects such as rapidly rotating or exploding stars. NASA’s ...

6 billion years old and home to more than 100 billion stars. This reality suggests there is likely a mind-boggling number of ...

Scientists have been all aflutter since several space-based detectors picked up a powerful gamma-ray burst (GRB) in October 2022—a burst so energetic that astronomers nicknamed it the BOAT (Brightest ...

With NASA’s Fermi Gamma-ray Space Telescope, astronomers now are getting their best look at those whirling stellar cinders known as pulsars. In two studies published in the July 2 edition of Science ...

To commemorate a milestone anniversary for NASA’s Fermi spacecraft, the mission team has published an e-book called “Our High-Energy Universe: 15 Years with the Fermi Gamma-ray Space Telescope.” ...

Using NASA's Fermi Gamma-ray Space Telescope, Chinese astronomers have observed a gamma-ray binary system known as PSR ...