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 ...

However, many years ago, the Earth looked very different to how it does today. Around 250 million years ago, all of the continents were joined together as one supercontinent called Pangea.

They include some of the largest animals on Earth. The blue whale is the biggest animal that has ever existed. Whales can be ...

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...

On 31 March 2007, more than 2.2 million individuals and 2,000 businesses in Sydney, Australia switched off their lights for one hour, which marked the beginning of the Earth Hour movement. And that ...

An asteroid capable of flattening a mid-sized city could potentially collide with Earth eight years from now ... He shared key facts about the asteroid with CBS News during the below conversation ...

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

Ready for a show? On the night of March 13 into the early hours of March 14, a total lunar eclipse will occur as the moon moves into the Earth's umbra, or shadow, turning the bright white lunar ...

Sound as we know it does not exist in space. That’s because, on Earth, sound mainly travels to our ears via vibrating air molecules. Because space is a vacuum, meaning there is no matter at all ...

He shared key facts about the asteroid with CBS News during the below conversation, which has been edited for clarity. When would the asteroid hit Earth? This asteroid passes us by every four years.

Where they lived: Dinosaur fossils have been found on every continent, including Antarctica. What they ate: Some ate plants, while others ate animals, including other dinosaurs. How big they were ...