Stephen Hawking recently announced that he'd come up with an answer to one of the biggest questions in physics. But it'll probably be a while before we know exactly what it is.

Hank talks about how warp drives could potentially work.

October was bittersweet for space scientists as we said goodbye to both the Kepler Space Telescope and Dawn mission.

Katherine is back with more information about cats and Jessi from Animal Wonders shares Gonzo the crimson-rumped toucanet.

Carbon dioxide is the biggest player in the climate crisis, reshaping our world in an urgent way, but that’s not the only way CO2 has changed the world. It’s also contributed to making some of the weirdest places on Earth.

emily Parsons-Lord re-creates air from distinct moments in earth's history -- from the clean, fresh-tasting air of the Carboniferous period to the soda-water air of the Great Dying to the heavy, toxic air of the future we're creating. By...

Your parents may have told you that every freckle on your face was a kiss from an angel, but SciShow is here to ruin that delusion for you.

It might feel like it was only yesterday that the Curiosity rover touched down on Mars, but in August, the rover celebrated its fifth birthday! For a kindergartener, it's made some really impressive discoveries.

This week on SciShow Space News, photos of Comet 67P and Pluto are helping us solve old mysteries and creating some new ones.

Theoretically, we could hide the Earth from faraway telescopes, using a properly placed laser pointer.

Have you ever noticed that your fingers and toes are all wrinkly and funny looking after you spend a lot of time in the water? Well, Jessi wants to know why that happens! Join her to find out the answer!

Got an idea to make your workplace better? Labor organizer and TED Fellow Jess Kutch can show you how to put it into action. In this quick talk, she explains how "productive conflict" -- when people organize to challenge and change...

Hank briefs us on a fascinating project that aims to map the anatomical and functional pathways of the brain - a neural network called the human connectome.

There’s probably life somewhere besides Earth, but all the exoplanets are so far away we may never see their surfaces in detail or intercept a clear radio signal from them. How do we determine if a distant planet has life?

Shortly after Jupiter formed, it might have been struck by an object that may have otherwise become its own planet! And researchers have a new estimate of how many Earth-like planets might exist.

There are a few ideas about how the universe will end, but a paper published last week suggests that dark energy might eventually rip everything apart!

Have you ever been sitting down for a long time and had your legs fall asleep? It feels really weird and can make it hard to walk for a little while! So what makes your legs fall asleep, and why does it feel all prickly when they start...

Have you ever been on a ride on the playground that made you really dizzy, like a merry-go-round? Have you ever wondered where that weird, spinning sensation comes from? Jessi and Squeaks have the answer!

Worldchanging.com founder Alex Steffen argues that reducing humanity’s ecological footprint is incredibly vital now, as the western consumer lifestyle spreads to developing countries.

Child prodigy Adora Svitak says the world needs "childish" thinking: bold ideas, wild creativity and especially optimism. Kids' big dreams deserve high expectations, she says, starting with grownups' willingness to learn from children as...

It takes an entire civilization to build a toaster. Designer Thomas Thwaites found out the hard way, by attempting to build one from scratch: mining ore for steel, deriving plastic from oil ... it's frankly amazing he got as far as he...

In a demo that drew gasps at TED2010, Blaise Aguera y Arcas demos new augmented-reality mapping technology from Microsoft.

As his career grew, David Byrne went from playing CBGB to Carnegie Hall. He asks: Does the venue make the music? From outdoor drumming to Wagnerian operas to arena rock, he explores how context has pushed musical innovation.

Stella Young is a comedian and journalist who happens to go about her day in a wheelchair — a fact that doesn't, she'd like to make clear, automatically turn her into a noble inspiration to all humanity. In this very funny talk, Young...