Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

Venus is a Victim of a Rampant Greenhouse Effect Venus's atmosphere is made mostly of carbon dioxide, one of the greenhouse ...

The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking Earth eight years from now.

Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.

More than 60 years after the first debunked discovery of a planet orbiting Barnard’s Star, the closest single-star system to ...

volcanoes produce some of the most dramatic geological events on the planet. Volcanoes are cracks in Earth's crust that allow molten rock and hot gases to escape. According to the U.S. Geological ...

Each planet in our solar system takes a different amount of time to complete one orbit around the sun. For example, Mercury, being closest to the sun, takes just 88 Earth days to complete one orbit.

He shared key facts about the asteroid with CBS ... I think this gives us a chance to prove that we, as a planet, can still rise above things on Earth that are between people, between countries ...