And there are plenty of interesting Earth Day facts to learn! But, first, a little background. Earth Day falls on April 22 ...

In honor of Earth Day, the Giraffe Blog has put together 50 awesome facts about space, the atmosphere, the sea, and what's under the earth. It's an easy reminder that our Blue Marble is an ...

One complete rotation of Venus takes 243 Earth days. Imagine a school day that long… To make things stranger, a year on Venus lasts only 225 Earth days. That’s right: a Venusian year is ...