you'll find a variety of Earth Day facts below that you might not already know. In this collection of trivia bits, you'll find interesting facts on how the observation got its start, the founders ...

Learn about Earth Day founder Gaylord Nelson (1916–2005) and how environmental disasters of his day inspired the creation of Earth Day in 1970. On December 7, 1972, Apollo 17 astronauts captured a now ...

The Northern Hemisphere is welcoming Spring 2025 on March 20, also known as the vernal equinox. The jump into spring has come ...

Earth orbits the sun once every 365.25 days. Since our calendar years have only 365 days, we add an extra leap day every four years to account for the difference. Though we can't feel it ...

In the April issue, to mark Earth Day, we’ll publish a guide that separates ... in an era when some people claim that there are no “facts” and basic science is loudly questioned without ...