Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also could have brought alien life to our planet. What evidence of this planet still ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a technosignature. Reading time 3 minutes From the moment astronomers discovered ...

The infamous Black Death—a pandemic that killed as many as one third to one half of Europeans within just a few years—may have been aided in its devastation by an unknown volcanic eruption. Riding ...