What is the universe made of?
AdultsHistoryPhysicsSpaceThe atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. Dennis Wildfogel tells the captivating tale of these atoms' long journeys from the Big Bang to the molecules they form today.
4K Footage | SpaceX Launches
AdultsSpaceTechnologyTransportation...Enjoy SpaceX launch footage in Ultra HD 4K. All footage used in this video was shot in 4K. If your connection is slow, toggle to 1080 HD for smoother playback.
The beginning of the universe, for beginners
AdultsHistorySpacePhysics...How did the universe begin -- and how is it expanding? CERN physicist Tom Whyntie shows how cosmologists and particle physicists explore these questions by replicating the heat, energy, and activity of the first few seconds of our universe, from right after the Big Bang.
What Color is the Universe?
AdultsPhysicsSpaceAstronomy...When you stare up at the night sky, you might think that the universe is really black, but that's just because our eyes aren't sensitive enough to see the billions and billions of multicolored stars out there. Ever wonder why certain stars are certain colors? And what color is our sun, really? If we looked at enough stars, could we figure out the average color of the universe?
Could We Stop An Asteroid? Feat. Bill Nye
AdultsScienceSportsTechnology...Could we stop an asteroid on a collision course for Earth?
How To Fly A Spaceship
AdultsSpaceTechnologyTransportation...Learn How To Fly A Spaceship To The Space Station With A Retired Astronaut!
Dark matter: The matter we can't see
AdultsPhysicsSpaceScience...The Greeks had a simple and elegant formula for the universe: just earth, fire, wind, and water. Turns out there's more to it than that -- a lot more. Visible matter (and that goes beyond the four Greek elements) comprises only 4% of the universe. CERN scientist James Gillies tells us what accounts for the remaining 96% (dark matter and dark energy) and how we might go about detecting it.
How folding paper can get you to the moon - Adrian Paenza
AdultsMathSpaceScience...Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential growth. This lesson will leave you wanting to grab a piece of paper to see how many times you can fold it!
The fundamentals of space-time: Part 2 - Andrew Pontzen and Tom Whyntie
AdultsMathPhysicsScience...Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time, CERN scientists Andrew Pontzen and Tom Whyntie use a space-time diagram to analyze the sometimes confounding motion of light.