A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

Stars like the Sun are remarkably constant. They vary in brightness by only 0.1% over years and decades, thanks to the fusion of hydrogen into helium that powers them. This process will keep the Sun ...

Stars like the sun are remarkably constant. They vary in brightness by only 0.1 percent over years and decades, thanks to the fusion of hydrogen into helium that powers them. This process will keep ...

How is lightning initiated in thunderclouds? This is difficult to answer – how do you measure electric fields inside large, dangerously charged clouds? It was discovered, more or less by coincidence, ...

Deep beneath the Earth lies a mysterious and powerful force. A wellspring of nuclear energy which could one day rip us apart.

Sudden and violent explosions have been leaving behind massive craters in the permafrost of Siberia — some nearly 70 feet wide and over 170 feet deep. The phenomenon has puzzled scientists since the ...

When massive stars die, they sometimes go supernova – exploding in incredible bursts of energy. Scientists haven’t spotted one in our own galaxy since 1604, and that explosion happened about 20,000 ...

The Earth of today is a lush garden that supports countless living organisms, but give it a few billion years, and Earth will be swallowed up by the Sun. Or maybe not. Astronomers have discovered an ...

An incredible new video taken by a NASA astronaut living aboard the International Space Station shows an epic explosion over Earth. But it’s not warfare or any other man-made horror that created the ...

A new video from an astronaut's vantage point in space catures a bright green burst over Earth as a meteor exploded in the night sky. NASA astronaut Matthew Dominick, commander of the SpaceX Crew-8 ...