Scientists have detected iron-60, a radioactive isotope from ancient supernova explosions, in Antarctic ice up to 80,000 years old. This discovery indicates that Earth is still being showered by debris from stellar explosions that occurred millions of years ago. The findings suggest our planet is traveling through a cloud of cosmic dust left by these long-dead stars.

A sprinkling of radioactive plutonium atoms hidden in the ocean floor may trace back to a cosmic cataclysm more than 100 million years ago.

Scientists have detected iron-60, a radioactive isotope from ancient supernova explosions, in Antarctic ice up to 80,000 years old. This discovery indicates that Earth is still…

Scientists often look to distant galaxies for answers, but sometimes those clues are hidden beneath Earths oceans. In a stunning discovery, researchers found radioactive stardust…