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 ...

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

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 ...

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!

This quiz will explore the science behind the scenery, the facts behind the familiar, and the wonders that make Earth a living planet.

Scientists have spotted seven Earth-size planets around a nearby star, some or all of which could harbor water and possibly life.

The Uranus Orbiter and Probe is now the the highest priority flagship mission for NASA after the "Decadal Survey" was published. Here are some surprising things about the mission.

By 2050 the number of older people will exceed the number of young people for the first time in history, the United Nations predicts. Here is an overview of our ageing world: ...