The Earth started as a mixture of gas and dust around the Sun and grew as it collided with asteroids and dust particles.

Curious Kids is a series for children of all ages. If you have a question you'd like an expert to answer, send it to ...

For decades, scientists have debated what wiped out the dinosaurs 66 million years ago. The usual suspects? A massive ...

Though astronomers have known about the threat posed by near-Earth objects since the 1970s, efforts to catalogue potentially ...

Space junk and meteoroids are falling to Earth every year, posing a growing risk as they re-enter the atmosphere at high speeds. Researchers are using infrasound sensors to track these objects, ...

The U.S. National Weather Service in Pocatello confirmed Sunday that a bright meteor streaking across Idaho's night sky was captured on dashcam video. "Anyone else catch this meteor earlier tonight?" ...

Scientists discovered a massive ocean hidden hundreds of miles beneath the Earth's surface a few years ago. Researchers claim ...