Researchers have uncovered more than a thousand previously unknown tectonic ridges across the Moon’s dark plains, showing the Moon is still contracting and reshaping itself. These features are among ...

Half of Earth’s oceans are more than 3.2km deep. Beneath them lie cavernous plains untouched by sunlight, vast gaping trenches made by Earth’s tectonic plates shifting, and ranges of underwater ...

A massive upheaval in the Saturnian system could have also led to the moon Hyperion.

Satellites have captured incredible views of the Feb. 17 annular solar eclipse as the moon's shadow swept across a remote ...

Longtime readers may remember a proposal to recreate the experience of standing on the the Moon inside a giant spherical ...

Even with a sturdy ship and the help of satellite images, negotiating the frozen ocean requires a dose of humility before nature’s might.

It’s not that rare for the Moon to pass in front of Mercury, but it seldom happens when it is this easy to watch.