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Trace and Amy get their DNA test results, and we talk to an expert about how scientists actually get genetic information out of DNA.

The meter is the world's ultimate measure, but how did it become "the" meter? What is this measurement based on? The story of this revolution in measurement traces its roots to the French Revolution. Scientists decided that an equal and united people should have equal and united measures. So they sent a pair of young astronomers out to measure the world, and invent the meter. Little did they know they'd find nothing but war, deception, and strife along the way. As a result of this ill-fated mission, the meter carries an error that still persists today. Still think the metric system is so perfect?

Stanford University researchers have found a new way to extract particles of Uranium from seawater. Could this bring us closer to sustainable nuclear power?

Watch the world's largest cloud harvester in action.

Chimpanzees are very smart animals, so why can't they speak? Tara is here to explain how a gene mutation allows humans to speak, but not chimps.

The technology behind the cinematic style of the BBC's Planet Earth II.

Scientists have found trash in the deepest parts of the ocean, the Mariana Trench. What does this mean for us and the organisms living there?

It's one of the most important technologies of our time.

Tyler Armstrong's dream is to climb the Seven Summits, the highest mountain on each continent, and at only 12 he has already summited Aconcagua, Mount Elbrus and Kilimanjaro. After being denied a permit to climb Mount Everest because of his age, he started preparing to climb Mount Denali to prove that he is able to conquer the world's most extreme terrain.

*BREAKING NEWS* NASA has just discovered 7 Earth-like planets!

A new study has found cockroaches can sense the Earth's magnetic field, an ability called magnetoreception. Could humans have this sense, too?

As the mean global temperature continues to rise, the arctic ice caps continue to melt. What are scientist planning to do about it? Here's a hint: it involves 10 million sea water pumps.

One man cracked his knuckles in one hand for 60 years and not the other. Watch the video to see what he found out.

Moleskine has developed a Smart Writing Set that transmits notes to your phone. The Pen+ has a thin aluminum body with a hidden camera embedded inside it.

Dragonfly wings are covered in bacteria-killing nanopillars, and scientists are taking inspiration from them to make smarter anti-bacterial surfaces!

You have your mom's smile, your dad's eyes, and the ear muscles of a Triassic mammal.

Amazing before and after satellite images taken from the International Space Station show how quickly our dynamic, but fragile planet can change.

When you leave the house, does your dog or cat even remember you?

The release of Pixar's Finding Dory could spell trouble for the blue tang, a species of tropical fish that the character Dory is based on.

The ten countries that recycle the highest proportion of their municipal waste.

Have you ever wondered what a fly is doing when it lands on your food? Laci did some research to figure out just what happens.