About 4.5 billion years ago, the solar system was just a giant, spinning cloud of gas and dust. Today, it's flat. Here's how that happened.
Hours of survey work have added an additional 8 miles to the passageways at Mammoth Cave National Park in Kentucky
Scotland's giant ice sheet has been recreated over Dundee in a stunning video that looks like the Wall from "Game of Thrones."
An extraordinary 120-million-year-old fossil bird from China reveals that the animal had a sexy but vaguely impractical tail.
Hunters in the Faroe Islands ambushed and slaughtered a super-pod of more than 1,400 white-sided dolphins on Sunday (Sept. 12), leading to worldwide outcry.
Researchers are set to break the world record for the most precise value of pi, after using an advanced computer to calculate the famous constant to 62.8 trillion decimal places.
Also known as "the sixth sense" or "psi," extrasensory perception, or ESP, encompasses a wide range of paranormal abilities, including mind reading and predicting the future.