What is Earth like?
Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface.
Our atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe. The atmosphere also protects us from incoming meteoroids, most of which break up in our atmosphere before they can strike the surface as meteorites.
Since we live here, you might think we know all there is to know about Earth. Not at all, actually! We have a lot we can learn about our home planet. Right now, there are many satellites orbiting Earth taking pictures and measurements. This is how we can learn more about weather, oceans, soil, climate change, and many other important topics.
Earth Fun Facts
Earth is the only planet in our solar system we know of that supports life.
Earth is a terrestrial planet. It is small and rocky.
A day on Earth lasts a little under 24 hours, but since you live here, you probably knew that already.
One year on Earth lasts 365.25 days. That 0.25 extra means every four years we need to add one day to our calendar. We call it a leap day (in a leap year).
Earth's atmosphere is the right thickness to keep the planet warm so living things like us can be there. It is mostly nitrogen, and it has plenty of oxygen for us to breathe.
We have known about our own planet since ancient times, of course. But we didn't know our place in the solar system or universe for a long time.
We have one moon. We're the only planet to have just one moon.
Earth has lots of spacecraft watching it. There is still a lot we can learn about our home planet.