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 ...

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

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.

Twelve people have landed on the moon As of 2025, only twelve people have ever set foot on the moon—all of them American astronauts from NASA’s Apollo missions between 1969 and 1972. It took six ...

From fiery 'blood moons' to ancient legends, discover the surprising science and history behind lunar eclipses.

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

A new study of decades worth of seismogram data shows that the surface of Earth’s iron and nickel core is more malleable than scientists thought.

IT’S been nearly 40 years since the first planet outside of our Solar System was discovered. Since then, more than 5,800 ...

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 ...

An asteroid capable of flattening a mid-sized city could potentially collide with Earth eight years from now, as its orbit around the sun briefly intersects the path of our planet. Named 2024 YR4 ...