Learn about the universe from Matt O’Dowd.
From PBS Space Time. Learn More About Anydesk: https://anydesk.com/spacetime Did God have any choice in creating the world? So asked Albert Einstein. He was being poetic. What he really meant, was whether the universe could have been any other way. Could it have had different laws of physics, driven by different fundamental constants. Or is…
From PBS Space Time. Remove your personal information from the web at https://joindeleteme.com/SPACETIME Big things are made of smaller things, and those smaller things are made of smaller things still. That’s reductionism in a nutshell, and digging our way to the smallest layer has been one of the primary goals of physics for ever. But…
From PBS Space Time. Learn More About Anydesk: https://anydesk.com/spacetime The biggest news in cosmology in recent years is that the mysterious universe-accelerating entity we call dark energy may be fading away. The evidence for this is now strong enough that enormous effort is going into confirming this result. So what’s it going to take, and…
From PBS Space Time. Use code PBS to get 15% off all Hoverpens and free shipping to most countries for the first 48 hours, 10% off after that. North America / UK / Australia / International: https://bit.ly/pbs_novium EU: https://bit.ly/pbs_noviumeu Help Protect PBS & American Public Media Home Around 2 billion years ago, life had plateaued…
From PBS Space Time. Remove your personal information from the web at https://joindeleteme.com/SPACETIME The vacuum of space is a chaotic sea of quantum fluctuations. Some have said that this vacuum energy can be harvested to build our future starship engines, or manipulated to build warp drives. It can’t. But it is technically possible to move…
From PBS Space Time. Huge thanks to KiwiCo for sponsoring today’s video! Go to https://www.kiwico.com/spacetime and use code SPACETIME for 50% off your first monthly crate Check Out Reactions on the Earth Month Playlist At one-one-thousandth of a second after the Big Bang, the great annihilation event should have wiped out all matter, leaving a…
From PBS Space Time. Check Out All PBS Earth Episodes: https://www.youtube.com/playlist?list=PLnNZYWyBGJ1F8ofFm4H9UTrHxqU8zngK4 Planet Earth is the jewel of the solar system—the shimmery blue oceans, the verdant green forests, the wispy whimsical cloud formations. Saturn is the only competitor for most gorgeous planet with that giant ring system. Hmm… what if we could put the jewel of…
From PBS Space Time. Remove your personal information from the web at https://joindeleteme.com/SPACETIME Giant space rocks are definitely going to hit the Earth again. We actually do know how to deflect them, but only if we find them and correctly assess their risk. But the solar system is a chaotic place. How is it even…
From PBS Space Time. Learn More About Cyber GhostVPN: https://www.cyberghostvpn.com/PBSSpaceTime Did you know that many of us have up to 4% neanderthal DNA? And that 100% of your DNA may come from outer space? No joke. The biochemistry that defined the coding system of your DNA may have happened off-world, and perhaps even long before…
From PBS Space Time. Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime How did the universe begin? How can something come from nothing? One way to “solve” this most difficult of philosophical conundrums is to avoid it altogether. Maybe the universe didn’t begin. Maybe the Big Bang was just one…
From PBS Space Time. Thanks to Radiacode for sponsoring this video. Use the promo code "PBS" to get an exclusive 10% discount at: https://103.radiacode.com/PBS They say fusion is 50 years away, no matter when you ask. Then why are billions suddenly being pumped into fusion startups? Yes to train LLMs, but there’s a reason the…
From PBS Space Time. Learn More About Anydesk: https://anydesk.com/spacetime According to quantum physics, the universe should have collapsed on itself in the instant after the Big Bang due to all particles being 100 million billion times heavier. Recent observations of the universe existing suggest that this may not have happened. Even more recent experiments at…
From PBS Space Time. Thanks to Radiacode for sponsoring this video. Use the promo code "PBS" to get an exclusive 10% discount at: https://103.radiacode.com/PBS The universe is expanding and that expansion is accelerating under the power of dark energy and eventually all matter and energy will be dispersed over such unthinkable distances that nothing can…
From PBS Space Time. Learn More About Anydesk: https://anydesk.com/spacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Dark matter has eluded us for many decades. Even our most advanced particle colliders and sophisticated underground detectors have come up short. But it may be that we can finally solve this mystery…
From PBS Space Time. Thanks to Radiacode for sponsoring this video. Use the promo code "PBS" to get an exclusive 10% discount at: https://103.radiacode.com/PBS What do you get if you take something that’s infinitely massive and combining with something else that’s negative infinitely massive? You get a single electron, at least that’s what it looks…
From PBS Space Time. Enjoy 10% OFF on all Hoverpens and free shipping to most countries with code PBS: North America / UK / Australia / International: https://bit.ly/pbs_novium EU: https://bit.ly/pbs_noviumeu Take the PBS Annual Survey Here: https://to.pbs.org/2024SurveyST What does an electron really look like? I mean, if we zoom in all the way. Is it…
From PBS Space Time. Remove your personal information from the web at https://joindeleteme.com/SPACETIME and use code SPACETIME for 20% off DeleteMe international Plans: https://international.joindeleteme.com Is there a limit to how much energy you can cram into, or pull out of one patch of space? Well, we thought so, but the James Webb Space Telescope has…
From PBS Space Time. On November 29th, 20% off the whole merch store! pbsspacetime Every good nerd knows that E=mc^2. Every great nerd knows that, really, E^2=m^2c^4+p^2c^2 Want to know what that even means? Sure, I’ll tell you, but today I’d like to invite you to an even higher level of nerdom with extra bits…
From PBS Space Time. Go to https://www.buyraycon.com/spacetime for up to 30% off your order, plus free shipping! Brought to you by Raycon. There are cosmic events so powerful that they leave permanent marks on the fabric of the universe itself. Imagine two colossal black holes spiraling into each other, yes they send ripples in the…
From PBS Space Time. Learn More About Anydesk: https://anydesk.com/spacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Imagine a world where humanity masters every planetary resource available to it—our first step on the famous Kardeshev scale of technological advancement. How distant is that step? Will we even become a true…
From PBS Space Time. 👉 Head to https://brilliant.org/spacetime/ for a 30-day free trial + 20% off your annual subscription Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Neutron stars aren’t dark matter–we figured that out a while ago. But new research is telling us that they may be dark matter…
From PBS Space Time. Weathered: Earth’s Extreme is available globally at: https://to.pbs.org/WeatheredST or the PBS App (US Only) Check out the Space Time Merch Store pbsspacetime We know that the universe is getting bigger. And we know that the speed that the universe is getting bigger is also getting bigger. The standard assumption is that…
From PBS Space Time. 👉 Head to https://brilliant.org/spacetime/ for a 30-day free trial + 20% off your annual subscription Check out the Space Time Merch Store pbsspacetime Here’s the story we like to tell about the beginning of the universe. Space is expanding evenly everywhere, but if you rewind that expansion you find that all…
From PBS Space Time. PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs.org/DonateSPACE Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime If you track the motion of individual stars in the ultra-dense star cluster at the very center of the Milky Way you’ll see…
From PBS Space Time. 👉 Head to https://brilliant.org/spacetime/ for a 30-day free trial + 20% off your annual subscription Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime If we discover how to connect quantum mechanics with general relativity we’ll pretty much win physics. There are multiple theories that claim to…