Get excited about Earth Day with these interesting facts about the world. Traveling to new places always expands the mind, but some of these facts might not be learned on vacation. Earth Day is on ...

Earth Day is April 22 — think you know the planets? Test your knowledge of the solar system in this fun and engaging lifestyle quiz — and see how well you do!

Read these 75 interesting and cool facts about Earth to learn more about our planet.

It's crazy to think people once believed the earth was flat. One step too far and you'd be sent tumbling into the depths of ...

Mars 10 fun facts about Mars, also known as the red planet Extensive research efforts have taken place in an ongoing mission to explore the planet ...

Stunning facts about Venus, Earth's 'sister planet,' where every day is 900 degrees Dean Regas Special to Cincinnati Enquirer 0:00 ...

COLUMBUS, Ga. (WRBL) – Each year on Feb. 18, a whole day is dedicated to the former planet Pluto. Pluto was once the ninth planet in the solar system, but striped of that title back in 2006. … ...

Still, signatures that our planet is inhabited could be found from even a few billion light-years away, as aliens could take a spectrum of Earth's atmosphere whenever a transit occurred.