Get quizzed on Yuri Gagarin's crash landing and cutting-edge shuttlecraft.

Scientists explore how the universe might have developed.

One astronomer believes she may already have heard alien communication.

Some strange-but-true phenomena may make time travel a reality.

Discover how aluminum foil, snowboards, contact lenses and bread are made.

Discover how compact discs, mozzarella cheese and pantyhose are made.

Discover how toothpicks, acrylic bathtubs, helicopters and beer are made.

Amateur and professional scientists share their experimental exploits.

Amateur scientists put their bodies on the line for science experiments.

Self-appointed scientists get up close and personal with mother nature.

Can a '67 Chevy turn into a 350-mile-per-hour road warrior, and are Pop Rocks candy and soda a recipe for disaster? Hosts Jamie Hyneman and Adam Savage put urban legends to the test to find the truth behind these great stories.

Find out if a person can get stuck to an airline toilet while it's in flight, and whether or not there is such a thing as a biscuit bazooka. Take a look at the truth behind the urban legend of the leaping lawyer.

Find out if one poppy seed bagel can tilt the results of a drug test and whether balloons can carry a lawn chair. Is a body covered in gold paint able to breathe, or is this a glamorous way to die?

At almost two miles, the Rion-Antirion Bridge is an engineering colossus.

The HMS Queen Elizabeth boasts a flight deck larger than two soccer fields.

Soaring more than 2,000 feet, the Shanghai Tower is a futuristic marvel.