Considered the world's most intriguing genius, Einstein has inspired hundreds of writings. Here's a short list of some of the most enlightening looks at his life and ideas, including some he penned.

Whales abandoned dry land over 50 million years ago to recolonize the sea. And they look nothing like the ancestors they left behind. Take a closer look at their extraordinary transition.

Earth's ice sheets are rapidly losing volume as humans have warmed the Arctic by over 2 degrees Celsius in the past 50 years. Could Greenland really unfreeze? And what might happen if it does?

Mount St. Elias, the third-highest peak in North America, is among the fastest growing ranges in the world, rising 3 to 4 millimeters a year. Find out what this natural laboratory is helping scientists learn about mountain building.