TED-Ed
TED-Ed: The beginning of the universe, for beginners - Tom Whyntie
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...
SciShow
Absolute Zero: Absolute Awesome
Hank explains absolute zero: -273.15 degrees Celsius - and the coldest place in the known universe may surprise you.
SciShow
The Future of Interstellar Communication
How will we communicate with the ships that we send to other stars? Scientists think the answer might involve using the sun as a giant lens to strengthen the signal.
SciShow
We Still Can't Find the First Stars in the Universe | SciShow News
Astronomers looking farther back in time than ever before are giving us a better idea of what the early universe must have been like, and we've identified another of the mysterious ultraluminous X-ray pulsars.
MinutePhysics
The Man Who Corrected Einstein
This video is about how Russian physicist Aleksandr Fridman corrected Albert Einstein about the expansion of the universe. Einstein thought that general relativity implied that space had to be static and unchanging, but he had made a...
SciShow
The Impossible Element Hiding in the Sun
Not all of the naturally occurring elements were discovered here on Earth. Helium was discovered by examining sunlight, and that same technique is now teaching us about the composition of distant galaxies.
SciShow
How to Stop Light in Its Tracks
Scientists have created beams of light that are slower than a car! Not only that, but with the literal flick of a switch, they can freeze that beam of light in place!
TED Talks
Erika Hamden: What it takes to launch a telescope
TED Fellow and astronomer Erika Hamden leads the team building FIREBall, a telescope that hangs from a giant balloon at the very edge of space and looks for clues about how stars are created. She takes us inside the roller-coaster,...
Be Smart
What is Farthest Away?
The edge of everything used to be the edge of the map. But now, thanks to what we know about astrophysics and the universe, the edge of everything might not even exist....
Crash Course
Binary and Multiple Stars
Double stars are stars that appear to be near each other in the sky, but if they’re gravitationally bound together we call them binary stars. Many stars are actually part of binary or multiple systems. If they are close enough together...
SciShow
What's Next for the James Webb Space Telescope
It finally happened! The James Webb Space Telescope is on its way to capturing never-before-seen images of the universe! But now that it’s airborne and unfurled, what are its next steps before it can deliver the goods?
PBS
Why Haven't We Found Alien Life?
With millions of Earth like planets around sun like stars in our galaxy alone, why don't we see intelligent alien life? Or any other life for that matter? It gets especially weird when you factor in new scientific revelations that life...
Bozeman Science
Second Law of Thermodynamics
In this video Paul Andersen explains how the second law of thermodynamics applies to reversible and irreversible processes. In a reversible process the net change in entropy is zero. In and irreversible process the entropy will always...
SciShow
Quantum Fishing for the Higgs Boson
Hank talks to some VIPs from CERN about the question on everyone's mind: does the Higgs Boson particle exist? And describes how CERN is going about finding the answer. Hank interviewed Sergio Bertolucci on October 11, 2011 and Rolf Heuer...
SciShow
Is the Size of Neutron Stars A Lie, Or Only A FRIB?
Have we been wrong about how big neutron stars are this whole time?
TED Talks
TED: What does the universe sound like? A musical tour | Matt Russo
Is outer space really the silent and lifeless place it's often depicted to be? Perhaps not. Astrophysicist and musician Matt Russo takes us on a journey through the cosmos, revealing the hidden rhythms and harmonies of planetary orbits....
SciShow
How (a Lack of) Bird Poop Proved the Big Bang
Reid describes how pigeons and bird poop helped prove the Big Bang!
SciShow
How the First Stars Transformed the Universe
The first stars turned all the neutral hydrogen in the universe back into ions, created a bunch of new elements, and just generally made a mess. But without them, you wouldn’t be here.
TED Talks
TED: The death of the universe -- and what it means for life | Katie Mack
The universe started with a bang -- but how will it end? With astonishing visuals, cosmologist and TED Fellow Katie Mack takes us to the theoretical end of everything, some trillions of years in the future, in a profound meditation on...
TED Talks
James B. Glattfelder: Who controls the world?
James Glattfelder studies complexity: how an interconnected system -- say, a swarm of birds -- is more than the sum of its parts. And complexity theory, it turns out, can reveal a lot about how the world economy works. Glattfelder shares...
Crash Course
Deep Time
As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered. Stars will die out after a few trillion years, protons will decay and matter will dissolve after a thousand trillion...
TED Talks
TED: The fingerprints of life beyond Earth | Clara Sousa-Silva
Is there life on Venus? Quantum astrochemist Clara Sousa-Silva makes the case for a new way to seek and possibly discover habitable planets -- and shares her research into a poisonous, smelly molecule that might signal life beyond Earth.
SciShow
The Smallest Star in the Universe
SciShow Space takes you to the smallest star in the universe, and explains how astronomers figured out that's what it was!