A Chinese paraglider has survived accidentally flying 8,500 meters into the sky - a "death zone" altitude. Peng Yujiang, 55, ...

"You must consider that at 4,000 meters depths, the pressure is 400 times what we experience at sea level," he told CBS News. That's about 13,000 feet, or nearly 2.5 miles. Inflated car tires have ...

In the 20th century, global sea level rose faster than at any other time in the past 3,000 years. It's expected to rise even ...

The Challenger Deep plunges to an estimated 10,935 metres (roughly 6.8 miles) below sea level - more than 1.2 ... This extreme pressure would crush most human-made objects.