Photos: Russian cargo craft undocks from ISS

A look at the departing Russian cargo spacecraft from an ISS window as it undocked this morning, and a look back at the ISS from the cargo spacecraft.

First Vine from space

The first-ever Vine from space condenses the ISS’s 92-minute lap around the Earth into six seconds.

Moon formed from Earth collision with planet-sized body: New evidence

The theory that the moon formed when a planet-sized body named Theia crashed into Earth is supported by new evidence using samples from Apollo missions.

Asteroid nicknamed Beast to fly past Earth June 8

Once they looked, astronomers began finding many asteroids near Earth. The one passing Sunday, June 8 is an especially big one, found only two months ago.

This insect has nature’s highest-pitched call

The newly discovered ‘Supersonus’ hits the animal kingdom’s highest-pitch call. Why? For love, of course.

Light from huge explosion 12 billion years ago reaches Earth

Intense light from an enormous star explosion more than 12 billion years ago — shortly after the Big Bang — recently reached Earth and was visible in the sky.

Why do koala bears hug trees?

As temperatures climb, koalas move to cooler trees and go limp, like wet dishrags. Turns out their tree-hugging is a cooling mechanism.

Rosetta spacecraft watches target comet come alive

Later this year, the Rosetta spacecraft will orbit and land on Comet 67P/Churyumov-Gerasimenko. Here's an update, in this new NASA video.

Severe storms blast through central U.S. on Tuesday

More severe weather expected Wednesday through the Ohio/Tennessee Valley region. Damaging wind and large hail. A tornado threat cannot be ruled out.

NASA has re-scheduled its ‘flying saucer’ test flight

On Tuesday, NASA was going to drop a flying-saucer-shaped vehicle from a helium balloon high above Earth's surface, in preparation for future Mars missions. But the test has been delayed, due to weather.