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

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

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

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

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

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.

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

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

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

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

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