From PBS Space Time. Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime We actually have a pretty good idea of what might have happened before the Big Bang. That is, as long as we define the Big Bang as the extremely hot, dense, rapidly expanding universe that is…

From PBS Space Time. This is a VR180 video so pop on your Google Cardboard or VR Headset to be totally immersed in our world! No headset? No problem. Move your mobile phone around and catch the total 180 experience. Have fun looking down from the catwalk! How can you build a telescope that can…

From PBS Space Time. Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Every astronomy textbook tells us that soon after the Big Bang, there was a period of exponentially accelerating expansion called cosmic inflation. In a tiny fraction of a second, inflationary expansion multiplied the size of the…

From PBS Space Time. Thank you to Draper and its Hack the Moon initiative for supporting PBS Digital Studios | Learn more at https://wehackthemoon.com. One of the fundamental questions humanity has always asked is how big is our Universe? For much of human history, people believed that Planet Earth was the very center of the…

From PBS Space Time. Thanks to LastPass for sponsoring PBS DS. You can check out LastPass by going to https://lastpass.onelink.me/HzaM/2019Q3JulyPBSspace Our universe started with the big bang. But only for the right definition of “our universe”. And of “started” for that matter. In fact, probably the Big Bang is nothing like what you were taught.…

From PBS Space Time. Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime When we finally have a quantum internet you’ll be able to simultaneously like and dislike this video. But we don’t. So I hope you like it. The world is widely regarded as being well and truly…

From PBS Space Time. Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Energy too cheap to meter – that was the promise of nuclear power in the 1950s, at least according to Lewis Strauss chairman of the Atomic Energy Commission. That promise has not come to pass –…

From PBS Space Time. Thank you to Draper and its “We Hack the Moon” initiative for supporting PBS Digital Studios. Learn more at https://wehackthemoon.com. Check out Physics Girl visit LIGO to see where they discovered Gravitational Waves https://youtu.be/jtp71NT0GNg Recently, the oldest quasar ever seen was discovered by the Gemini North telescope in Hawaii, the Magellan…

From PBS Space Time. To learn to think like a scientist check out http://Brilliant.org/SpaceTime Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Black holes are really only dangerous if you get too close. Ha, who am I kidding. It turns out they may be responsible for ending star…

From PBS Space Time. Carl Sagan’s famous words: “We are star stuff” refers to a mind-blowing idea – that most atomic nuclei in our bodies were created in the nuclear furnace and the explosive deaths of stars that lived in the ancient universe. In recent years it’s become clear that the truth is even more…

From PBS Space Time. To Learn more about ExpressVPN, visit: https://www.expressvpn.com/spacetime We live in the stelliferous era. Somewhere between 10 and 1000 billion trillion stars fill the observable universe with light. But there was a time before the first star ignited. A time we call the cosmic dark ages. Check out the new Space Time…

From PBS Space Time. Try Audible for 30 days visit https://www.audible.com/spacetime or text spacetime to 500 500! Quantum computing is cool, but you know what would be extra awesome – a quantum internet. In fact if we want the first we’ll need the latter. And the first step to the quantum internet is quantum cryptography.…

From PBS Space Time. You can learn more about CuriosityStream at https://curiositystream.com/spacetime How do you take a picture of a black hole and what can we learn from it? Our first ever actual bona fide photo of a black hole, made by the Event Horizon Telescope and revealed to the world in a press conference…

From PBS Space Time. You can learn more about CuriosityStream at https://curiositystream.com/spacetime We’ve been failing to detect dark matter for decades. Finally, the latest failure to detect dark matter may have actually proved its existence. One of these is true: either most of the matter in the universe is invisible and formed of something not…

From PBS Space Time. We live in a universe with 3 dimensions of space and one of time. Up, down, left, right, forward, back, past, future. 3+1 dimensions. Or so our primitive Pleistocene-evolved brains find it useful to believe. And we cling to this intuition, even as physics shows us that this view of reality…

From PBS Space Time. Have you ever asked “what is beyond the edge of the universe?” And have you ever been told that an infinite universe that has no edge? You were told wrong. In a sense. We can define a boundary to an infinite universe, at least mathematically. And it turns out that boundary…

From PBS Space Time. Of all the unlikely ends of the universe, the Big Rip has to be the most spectacular. Galaxies ripped to shreds, dogs and cat first living together, then tragically separated by the infinitely accelerating expansion of space on subatomic scales. Good thing it’s not going to happen. Or is it? Check…

From PBS Space Time. Learn More about The Great Courses Plus: http://ow.ly/wvWC30o0QYV Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime The power of Dark Energy may be increasing as the universe ages. Subtle clues are emerging that the accepted model for the nature of dark energy and dark…

From PBS Space Time. Check out Sound Field: http://youtube.com/soundfieldpbs Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Thanks to Matthias Rüby for on-site camera work. https://www.instagram.com/matthiasrueby/ The private space-race has been on for a while now. The attention has been on Space-X and Blue Origin with their reusable…

From PBS Space Time. You can learn more about CuriosityStream at https://curiositystream.com/spacetime Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime See Matt in NYC at Caveat March 7th at 9pm: https://www.caveat.nyc/event/astronaut-training-a-space-camp-game-show-for-lunatics-3-7-2019 Bad ideas come and go in physics. But there’s one bit of nonsense that is perhaps more…