A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...

NASA's Voyager 1 spacecraft took a photo of Earth and the moon. It was the first time both the Earth and the moon were ...

"Asteroids that fail to escape Earth's gravity and end up orbiting the planet for a time are referred to as mini-moons," The ...

The Earth has pulled in moons of this type before but none have ever stuck around as long as the moon we know.

A newly discovered doughnut shape in Earth's outer core may reveal elements that help drive the formation of the planet's ...

S tarting in late September, Earth is going to have a second moon for two brief months, as a small asteroid piece will be ...

After launching early on Tuesday, the billionaire Jared Isaacman and his crew traveled to altitudes not visited by any ...

Voyager 1 was responsible for one of the most iconic space photos in the history of the space program. In 1990, while still ...

NASA's most distant spacecraft had a critical thruster problem far from home. Fixing it required a long-distance call to ...

A Mars scientist shares the inside story of the NASA Curiosity rover's poignant first photo of Earth and Mars moon Phobos ...

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

You stand at the shore of a desolate ocean on a desolate world. As the dawn breaks, a strangely red star, 50 times larger ...