Yet despite the drumbeat of evidence, we still know of just one planet in the cosmos with life — the one you’re standing on.

There are a lot of satellites, and a lot of trash, around our planet — and the quantities are only going to get higher.

we can tune into the hidden sounds of our planet, from the pull of the moon on our mountains and cities to a silent rumble so deep and powerful, it can move the earth around it.

A distinctive blue and green image of Earth reveals our planet's most remarkable features. At 4.54 billion years old, our home world is a venerable object. But it was only with the arrival of the ...

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...