For decades, the Moon was treated as a dead end, a place where flags and footprints marked the limits of human reach. Now ...

A new NASA spacecraft called Pandora is awaiting launch ahead of its journey to study the atmospheres of exoplanets, or ...

When something goes wrong with a human body in orbit, there is no nearby emergency room, no quick ambulance ride, and no easy ...

"We're not saying, and we can't say, that there's no life in Europa. What we're saying is that it's a harder proposition, ...

The James Webb Space Telescope (JWST) is a large space telescope which collects light at infrared wavelengths. It has been ...

By cutting into a tiny throat bone, Princeton's Chris Griffin showed that it belonged to an adult of a smaller tyrannosauroid ...

The world’s oceans are becoming dangerously acidic. A controversial proposal would raise the pH — by mixing chemicals into ...

There are "costs of life" that mechanical physics cannot calculate. A clear example is the energy required to keep specific ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: All life on Earth can be traced back to a Last ...

Earth's earliest life left behind very few chemical traces. Fragile remains, like ancient cells and microbial mats, were buried, squeezed, heated, and broken apart by the planet's shifting crust ...

A satellite photo from March shows a pair of parallel tornado tracks in Mississippi, leftover from a deadly storm system that spawned over 100 twisters in more than a dozen U.S. states. When you ...