VOA
Search
Menu
  • Archives
  • Contact
  • Science World
Science World

Tag: exploded

Nearby Supernovae Showered Earth and Moon With Radioactive Iron

April 15, 2016

Artist Animation of Star Explosion (NASA/JPL/Australian National University) Two new studies suggest radioactive bits of a nearby star or stars that exploded into a supernova or supernovae showered the Earth and Moon with radioactive iron a couple of million years ago. Both studies found the stellar evidence in concentrations of an isotope of iron called […]

Top Tags

  • NASA262 Posts
  • astronomers103 Posts
  • ESA87 Posts
  • Mars86 Posts
  • study81 Posts
  • "European Space Agency"80 Posts
  • "solar system"77 Posts
  • spacecraft76 Posts
  • Sun63 Posts
  • JPL62 Posts
VOA
  • Archives
  • Contact
  • Science World