NASA's Lucy spacecraft visited the asteroid 52246 Donaldjohanson on April 20, 2025, coming within 600 miles (920 kilometers) of the object located in the inner region of the asteroid belt between Mars ...

The Apophis asteroid, once feared to hit Earth, is less than three years from making an unprecedented approach toward Earth.

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system. Better known as Deinococcus radiodurans, this microbe is arguably the ...

Rocks from Mars have landed on Earth. Scientists have found them, meteorites with a chemical signature that could only have come from the Red Planet, scattered across Antarctica and other remote ...