Asteroids are some of the oldest objects in the solar system: leftovers from the chaotic time when planets were assembling ...

Researchers have devised a new tool for discerning between naturally occurring viral outbreaks and those resulting from lab ...

When worlds collide…suns act squirrely. Astronomers have witnessed a rare and violent cosmic crash between two planets, and ...

Half a billion years ago, the first true eye emerged in Earth’s oceans. Fossils now reveal what that ancient crystal vision could actually see.

Over 4 billion years ago, as planets were coalescing around the newborn Sun, our star may have gone on an epic road trip across the Milky Way along with thousands of stellar "twins." And we may owe ...

Around 1.7 billion years ago, eukaryotes—the building blocks of complex life—first appeared on Earth, and now scientists have ...

Google Earth’ for human organs made available online An international team of scientists and clinicians has announced, in ...

“Geoneutrinos are a type of antineutrino produced by radioactive decays happening inside the Earth. By measuring geoneutrinos ...

We’ve had things that have reentered have a 1 in 1,000 chance, and nothing happened; if we have a few that are 1 in 4,000 or ...

At first, the universe was like a hot stew. Instead of carrots and potatoes, it had particles. As the soupy universe cooled, ...

The precipitation of salt out of sea ice created a feedback mechanism that might explain the formation of Snowball Earth, the most extreme climatic event in the history of our planet. The idea, ...

Blue oceans, green forests, a cozy blanket of oxygen. Our planet is a super comfy home. It’s hard to imagine there was ever a time it didn’t exist. I asked my friend Julie Ménard how Earth formed. She ...