Satellites and chunks of space junk come close to colliding on a regular basis. The situation could get dangerously out of ...

A research team including a University of Michigan scientist has discovered a new mechanism that helps researchers understand ...

Testimony and several reports have exposed unidentified flying object (UFO) sightings across the country amid the national ...

On Dec. 26, 2004, a 9.2-magnitude earthquake shook Southeast Asia, triggering the worst tsunami in recorded history.

Present-Day Plate Boundaries: This model improves upon existing models, incorporating attributes from geophysical, ...

While this is considered a “close approach” by interstellar standards — NASA defines near-Earth objects (NEOs) as those that ...

Earth’s major carbon sinks are nearing their limits, signaling that natural processes may soon be unable to compensate for ...

Many of the fluctuations in the length of Earth's day have known causes. But on scales of decades to millennia, scientists ...

Where is the snowiest place on Earth? Snow enthusiasts have been discussing it for a long time, but there’s no consensus.

How much do you know about Antarctica? Take our science quiz to see if you'll freeze up or be as cool as a cucumber.

In the new photographic collection Our Frozen Planet, Michael Hambrey and Jürg Alean set out to celebrate the world's ice in ...