Since 1978, China has planted more than 66 billion trees along its 2,800-mile-long northern border, and it wants to plant 34 ...

A Hidden Tatooine-like world has been found. The discovery sheds new light on how planets form and survive in extreme ...

Mars once looked far more like Earth, with a thicker atmosphere and liquid water pooling on its surface, yet today it is a ...

Researchers using NASA's James Webb Space Telescope have detected the strongest evidence yet for an atmosphere on a rocky ...