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 ...

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.

but since our planet was formed around 4.6 billion years ago, the length of a day has been gradually growing. A day is the time period of a full rotation of the Earth with respect to the Sun.

Scientists discovered that methyl halides, a gas produced by microbes, could be a biosignature for life on distant planets.

Seven planets currently form a rare "planet parade" in February's evening sky, with three easy to see with the naked eye, and ...

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

Imagine floating in space, gazing on a frozen white orb. The ball hangs in the void, lonely and gleaming in the light from ...

As Sunita Williams and Barry Wilmore are expected to return on March 19/20, a lot is being discussed about their health as ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...

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 ...