From PBS Space Time. Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Nobel laureate Roger Penrose is widely held to be one of the most brilliant living physicists for his wide-ranging work from black holes to cosmology. And then there’s his idea…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Warp drives may or may not be possible, but if they are then could a distant alien civilization’s warp fields produce gravitational waves that we could see here on Earth?…

From PBS Space Time. Get NordVPN 2Y plan + 4 months extra + up to 20Gb Saily data here ➼ https://nordvpn.com/spacetime It’s risk-free with Nord’s 30-day money-back guarantee! Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime All particles belong to two large…

From PBS Space Time. Check out: https://incogni.com/spacetime and use the code spacetime Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Solar activity is still increasing in a sunspot cycle that is proving way more intense than scientists predicted. Just how much stronger…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime So you’ve decided to jump into a black hole. Good news: as long as the black hole is big enough you can sail through the event horizon without harm and…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Cern’s Large Hadron Collider routinely collides particles at energies equivalent to a fraction of a second after the Big Bang. If this worries you, then the following fact will either…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Black holes are inevitable predictions of general relativity—our best theory of space, time and gravity. But they clash in multiple ways with quantum mechanics, our equally successful description of the…

From PBS Space Time. Check Out Space: The Longest Goodbye on the PBS YouTube channel: https://www.youtube.com/watch?v=MT-pV48XBI4 Watch Space: The Longest Goodbye on Independent Lens: https://pbs.org/longestgoodbye In the far future we may have advanced propulsion technologies like matter-antimatter engines and compact fusion drives that allow humans to travel to other stars on timescales shorter than their…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Meet Alice and Bob, famous explorers of the abstract landscape of theoretical physics. Heroes of the gerdankenexperiment—the thought experiment—whose life mission is to find contradictions in the deepest layers of…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime The Moon has been one of the most important theoretical stepping stones to our understanding of the universe. We’ve long understood that it could also be our literal stepping stone: humanity’s first destination beyond our atmosphere. PBS Member Stations rely on viewers like…

From PBS Space Time. Check Out PBS’ Earth Month playlist: https://www.youtube.com/playlist?list=PLnNZYWyBGJ1F8ofFm4H9UTrHxqU8zngK4 Check out the Space Time Merch Store pbsspacetime Of all the astronomical phenomena you can witness, the total solar eclipse has to be the most visceral–the most in-your-face reminder that our reality consists of giant balls of rock spinning around stars. It’s also the…

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 There are four fundamental forces – the strong and weak nuclear forces, electromagnetism, and gravity. Except maybe gravity is no more fundamental than…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Space seems fundamental. To build a universe, surely you need something to build it on or in. Many, maybe most physicists now think that the fabric of space emerges from…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime In 1974 we sent the Arecibo radio message towards Messier 13, a globular cluster near the edge of the Milky Way, made up of a few hundred thousand stars. The message was mostly symbolic; we weren’t really expecting a reply. Yet surely other…

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 EMPs aren’t science fiction. Real militaries are experimenting on real EMP generators, and as Starfish Prime showed us, space nukes can send powerful…

From PBS Space Time. Sign Up on Patreon to get access to the Space Time Discord & 10% Off All Merch! https://www.patreon.com/pbsspacetime It’s not too often that a giant of physics threatens to overturn an idea held to be self-evident by generations of physicists. Well, that may be the fate of the famous Penrose Singularity…

From PBS Space Time. Check Out Fascinating Fails: https://youtu.be/8zMhoj7tFiw?feature=shared Check Out the Space Time Merch Store pbsspacetime This is what we astronomers call a blob, or a smudge, if you want to get really technical. It may not look like much from here, but what do you expect for something near the literal edge of…

From PBS Space Time. Learn More About 80,000 Hours at: https://www.80000hours.org/spacetime 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 From hoverboards to flying cars to cloud cities, anti-gravity is a staple of science fiction and…

From PBS Space Time. Check out the Space Time Merch Store pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Two of the greatest mysteries in cosmology are the nature of dark energy and the apparent conflict in our measurements of the expansion rate of the early versus the modern…

From PBS Space Time. Check out the NEW Space Time Merch Store: https://www.pbsspacetime.com/shop Use Code: PBS at Checkout for 15% off in December 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 A fun nightmare sci-fi…