80,000-year-old Antarctic ice reveals radioactive stardust still falling on Earth. Is it dangerous?

Scientists have detected iron-60, a radioactive isotope from ancient supernova explosions, in Antarctic ice up to 80,000 ...
Smithsonian Magazine on MSN

See a diamond planet, an exploding star and a black hole up close in a new immersive virtual reality experience

On the exoplanet Janssen, heat from its host star and immense pressure have made the world something of a hellscape, with the ...