Throughout much of Earth's history, the climate has switched between periods of extreme heat and freezing cold. Cold, glacial periods are characterized by large ice sheets in the Northern Hemisphere, ...

You don’t have to travel far for this one — we’re diving into the incredible planet you’re standing on right now. Earth is the only known world teeming with life, wrapped in oceans, mountains, forests ...

The U.S. has 63 national parks, each boasting stunning landscapes, impressive geological features and often rare ecosystems. National parks are areas of land protected by the federal government and ...

Test your science knowledge with this weekly news quiz! We’d love to hear from you! E-mail us at games@sciam.com to share your experience.

Millions of asteroids are floating around in space. Find out what you know about these relics of our solar system. (Jungmin Ryu for The Washington Post) Warning: This ...

How advanced is your scientific knowledge? 👀 From geophysics to chemistry and biology, this 28-question science quiz covers ...

From the microscopic wonders of human biology and complex chemical reactions to the mysteries of Earth’s ecosystems and the vast reaches of outer space, prove yourself in the ultimate general science ...

From museum programmes to nature camps to a new quiz book, here are fun ways for parents to raise eco-conscious kids. Read ...