The sun is midway through its life of fusion. It's about 5 billion years old, and though its life is far from over, it will ...

We live in a rapidly warming world. Immense volumes of human-generated greenhouse gases are nudging Earth’s climate to a ...

The "spiders" are actually features in the Martian crust called "araneiform terrain," and scientists now understand how they might have formed.

From a solar eclipse to a dolphin-like nebula, these winning shots by astrophotographers from around the world depict the ...

Down To Earth Community Lab: Join your fellow space explorers to ask questions, share out-of-this-world ideas, and forge new ...

The discovery of an Earth-mass planet around a white dwarf based on gravitational microlensing could offer clues to the ...

But disaster struck 200,000 miles from Earth, leaving Marilyn - and the world - watching with bated breath to see if the Apollo 13 crew would return from the doomed spacecraft. Terrified Marilyn ...

Wilmore and Williams should have flown Starliner back to Earth by mid-June, a week after launching in it. But their ride to the space station was marred by the cascade of thruster trouble and ...

Jupiter’s moon Ganymede may have shifted on its axis when a massive asteroid smashed into it about 4 billion years ago, according to a new study. Ganymede, the largest moon in the solar system, is ...

NEW YORK (AP) — A small asteroid discovered on Wednesday harmlessly burned up in Earth’s atmosphere the same day, NASA said. The asteroid — about 3 feet (1 meter) across — was spotted by ...