The spring, or vernal, equinox traditionally marks the first day of spring — but climate scientists use a different date altogether. Find out more about this and other facts we've gathered for your astronomical pleasure.
Have you ever read "Journey to the Center of the Earth" and wondered if it were possible to do it? Well, scientists are in the process of giving it their best shot. How hard is it to dig a hole this deep, and what might they find?
Of course you know what gravity is. It's the force behind Wile E. Coyote plummeting off the face of a cliff and you stumbling spastically in front of your crush. But did you know it can bend light and help us detect hidden cosmic phenomena, too?
Water surrounds us, falling from the sky, rushing down Niagara Falls, pouring from faucets, and yet many of us never ask where it comes from. The answer stretches way back -- before tides and thunderclouds to the big bang.
What if we could just add water to something and solve the planet's energy crisis? That's essentially the idea behind artificial geothermal energy. But there's one possible catch: catastrophic earthquakes.