Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Water is at the center of one of the enduring questions about how ...

Humanity has been leaking radio noise into the cosmos for just over a century, and those signals now form a vast, expanding ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles within this cloud collided and clumped together, driven by gravity and ...

Earth should have lost its water long before life ever had a chance to appear. Bathed in a young Sun’s fierce radiation and ...

A bright fireball streaked across the sky above mountains, glaciers and spruce forest near the town of Revelstoke in British Columbia, Canada, on the evening of March 31, 1965. Fragments of this ...

Scientists have long believed that the Moon was formed by a massive object crashing into the Earth billions of years ago and sending chunks hurtling into space that ultimately coalesced. But what was ...