The three warriors tell their awe-inspiring stories of resilience and their decision to join the reserves despite their ...

For a star to go supernova, it must be quite massive ... "It's the equivalent of getting front row seats at a fireworks show," Cendes explained. (Gamma rays are on the same radiation spectrum ...

Take the famous photo of the Pillars of Creation, or Hubble’s Deep Field Image, for instance — this colorful image of the Vela Supernova Remnant can stand with the best of them. This wispy web ...