The world's oldest rocks are spread across the globe and paint a picture of Earth's turbulent early history. Here are some of ...

Kessler syndrome could make space exploration and the use of satellites dangerous, or even unfeasible, for many generations.

From a telescope network that spans much of the globe to a psychology study that spans 67 countries, here are the biggest ...

Twenty years ago today a magnetar’s epic tantrum made our planet ring like a bell from tens of thousands of light-years away ...

In what would be an unprecedented event, Earth is facing the devastating effects of a solar superflare with the force of thousands of atomic bombs. This phenomenon, which unfolds i ...

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

Pictures from the International Space Station do not disappoint, from comets and northern lights to giant hurricanes and ...

The astronauts on the I.S.S. — including two who were scheduled to return months ago — held a zero-gravity cookie-decorating ...

Asteroid-detecting AI algorithms have already identified 27,000 new pieces of space debris, bringing the known number to 1.3 ...

The concept known as “Kessler Syndrome” was proposed nearly five decades ago. Experts weigh in on whether the space-based disaster scenario is already unfolding.

Recent testimony and several reports have exposed possible UFO sightings across the country amid national attention on ...