Mercury is the smallest planet in the Solar System and also the closest planet to the Sun. Mercury orbits the Sun at an ...

Discover interesting facts about Saturn, its rings and whether it could contain extraterrestrial life.

Venus is one of the weirdest planets in the solar system. We explore the scorching planet in more detail with 20 interesting facts about Venus.

Twelve people have landed on the moon As of 2025, only twelve people have ever set foot on the moon—all of them American astronauts from NASA’s Apollo missions between 1969 and 1972. It took six ...

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!

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 By Ashlyn Messier Fox News ...

Discover interesting facts about how the moon formed, what it's made out of, and the many missions humans have launched to explore it.

Mercury moves super fast around the Sun, finishing its year in just 88 Earth days. The planet has crazy temperature swings, ...

Neptune is called an “ice giant” because it’s mostly made of a thick, slushy mix of water, methane, and ammonia, which ...

Discover interesting facts about how Earth formed, what it's made of and more.

Here are some fun facts about Earth as we celebrate this planet we live on for Earth Day.