Clouds can range in color from brilliant white to almost black. Why?
Where is the last place you would expect to find a seashell? Probably on the top of a mountain right?
In order to point at the poles your arms must not only point northward and southward, but downward.
Around New Guinea, there's a watery hill almost two hundred and fifty feet high. This isn't a hill on the ocean floor, but a hill on the ocean's surface.
Until the third century B.C. it was generally accepted that the world was flat until a man named Eratosthenes came across an interesting discovery.
After proving that the earth is round, third century B.C. thinker Eratosthenes had the information he needed to measure the earth’s circumference.
Landslide! Hundreds of tons of rock and soil are careening toward you at enormous speed. Little dainty flowers still standing, blades of grass unbent. How??
In most species, the females die once they hit menopause and no longer reproduce. Why do human females live long after they're no longer able to have children?
Did you know that there are huge, hidden lakes beneath the Antarctic ice sheets? Learn more on this Moment of Science.
A mysterious geological feature can be found on the slopes of Mount Rainier, a volcano in Washington state. Learn more on this Moment of Science.