Through the use of cutting-edge instruments, scientists finally have the opportunity to probe deep beneath the surface and ascertain exactly how the terrestrial planet formed.

Scientists have pinpointed the energy limit fo the human body--basically, the maximum mileage we can get out of the tank. The takeaway? Pregnancy isn't that different from an ultra marathon. Read on to learn more about how your body burns energy.

For the first time ever, humans will enter the grizzly bear’s domain to test their strength, speed, and stamina against nature’s top predator.

All bear participants are free range captive bears who would die if returned to the wild. Their caretakers are responsible for exercising them as part of a daily routine to ensure their health. Competitions have been designed around the bear’s natural instincts and actions. No bear is ever forced to compete.

Science Channel is set to ring-in the New Year with a BANG!

Alaskan Bush People's Bear Brown and former-fiancé Raiven Adams couldn't wait to share the news.

Grizzly Mountain is home to three of the strongest, fastest, and smartest bears: Bart, Honey Bump and Tank. Each bear has their own unique strength against each human challenger. Find out which bear you’d stack up against in the Man Vs Bear challenge.

After four years of delighting individuals and families in the United States, giant panda Bei Bei is ready to bid farewell and embark on the next stage of his life in China.

Discovery will follow the epic journey through the Drake Passage this December.

After 54 long days battling subzero temperatures, wind storms, and complete white-outs, Colin O’Brady has become the first person to cross Antarctica alone, unaided without support or supply drops.

Find out what the optimal sleeping temperatures are on Discovery.com.

The next generation of the Wolfpack is making the dream of North Star Ranch come true.

Today, from 7:35 am to 1:04 pm ET, Mercury lined up with the sun, which is called a transit. But what does this mean? Why is it rare? Read on.