Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

They flattened forests, left massive craters and even killed the dinosaurs. Learn all about Earth’s hugest asteroid strikes.

Experiments suggest that an unusual magnetic material can help harness energy from the planet’s rotation. But not everyone is ...

The solar system moved through a star-forming area near Orion. This event might have increased interstellar dust around Earth ...

In our news wrap Tuesday, two American astronauts stuck in space since last year are finally back on Earth, Senate Minority ...