Max, Chris, and Joey decide to test out some new custom-made blades and explain the best way to dispatch a zombie. The undead better think twice before going up against these guys!

Now that astronaut Scott Kelly is back on earth, scientists are studying how all that time altered his body.

After months of pestering, Karl finally goes to see a doctor for a prostate exam. As an added bonus, Ricky and Steve get to watch the whole thing on a video monitor.

In a spectacular discovery, a team of scientists came across a 600-mile long coral reef located at the mouth of the Amazon River, all hidden under muddy waters.

See how an asteroid collision could result in the Earth spinning closer to the sun.

Explore the possibility of communication with aliens through satellite signals.

One way the world might end: evil nano-robots.

Could all-powerful robots bring about the end of the world?

Scientists discuss the probability and implications of an alien invasion.

Could super intelligent mutants spell doom for all mankind?

Scientists demonstrate a lab-sized version of a volcanic eruption - the kind that in real life, could spell doomsday for Earth.

Another way the world could end: a freezing, barren, blustery, frigid ice age.

Will the world end in nuclear holocaust brought on by mad scientists, crazed enemies, or computer-controlled warfare?

Will the end of the world be heralded by an unstoppable deadly plague?

NASA's Juno spacecraft will orbit Jupiter for about two years before scientists destroy it. They're destroying it in order to avoid contamination on Jupiter's moon Europa, which could have life.

Jupiter is the largest planet in our solar system, and it also spins the fastest.

Touch screens never felt so good. In a few years, we may be able to reach out and touch the objects on our computer screens through the power of a tiny chip. Learn more on this clip from The Science Channel's, "Pop Sci's Future of Communication."

The James Webb Space Telescope, soon to be the premier observatory for astronomers around the world, is a big step closer to completion.

What if you couldn't tell the difference between man and machine? Meet the man who has invented the world's most life-like android.

What if there was a machine where you could make anything you want, exactly how you want it? That's the thinking behind 3D printers, and race car designers are hoping to use the technology to create even faster cars.

After a model airplane took his finger, Lee didn't get a replacement digit - science was actually able to regrow his fingertip, with a little help from salamanders and pigs.

What if everything from your toothbrush to your umbrella was plugged in to the Internet. Ubiquitous computing, or pervasive computing, brings connectivity to every object in your everyday life.

Students in New Mexico attend the strangest summer school you've ever seen: Explosives 101. This is where explosives experts come to train.

In Bogota, Colombia, there's a new clothing line popular among the rich and famous. It's not haute couture -- it's bullet-proof. Here's how it works

Astronaut Reid Wiseman has taken some stunning photos from space. He explains how it’s done, the subtle changes he uses in low earth orbit, and how the team shares the window seat.

Clearing land mines is dangerous work. Could rats be the solution to safely sniffing out land mines?

Even though we know a great deal about this rocky, cratered place, the Moon still has plenty secrets left.

The seventh row of the period table is officially complete with the addition of four new elements.

You never know what will inspire someone. Astronaut Reid Wiseman wanted to spark people’s imagination with new social media tools to put the excitement of seeing the earth and space right in front of them.

DNews' Amy Shira Teitel recaps SpaceX's Falcon 9 barge landing test and whether its inability to land should be called a failure.

What if the use of one simple pill could help to cement our long-term memories? One scientists may have found the key to keeping our brains forever young.

The proposed plane would use both electricty and fossil fuels for power. This could cut the cost of flying by millions.