We are all star dust.
From StarTalk. What’s a parsec? Neil deGrasse Tyson and Chuck Nice break down space’s weirdest unit of measure. Learn how people came up with parsec and how Star Wars, once again, doesn’t understand science. Timestamps: 00:00 – Embarrassing Unit of Measure 1:13 – Origins of Parsec 3:12 – Parallax Experiment 7:59 – Parsec vs. Light…
From Dr. Becky. The Big Bang Theory is nearly perfect, except for one glaring problem – where is all the Lithium? According to the theory predictions there should be over three times as much Lithium in the Universe than we’ve found with our observations. So is this a case of we’ve been looking in the…
From PBS Space Time. Click this link https://boot.dev/?promo=SPACETIME and use my code SPACETIME to get 25% off your first payment for Boot.dev. Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Some people worried that the large hadron collider would smash particles together so hard it would make black holes that…
From Dr. Becky. AD – To try everything Brilliant has to offer for free for 30 days visit https://brilliant.org/DrBecky and you’ll also get 20% off an annual premium subscription which gives you unlimited daily access to Brilliant. | The Big Bang Theory is nearly perfect, except for one glaring problem – where is all the…
From StarTalk. Check out our second channel, @StarTalkPlus Get the NEW StarTalk book, ‘To Infinity and Beyond: A Journey of Cosmic Discovery’ on Amazon: https://amzn.to/3PL0NFn Support us on Patreon: https://www.patreon.com/startalkradio FOLLOW or SUBSCRIBE to StarTalk: Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalk About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil…
From StarTalk. T-Mobile 5G Home Internet. https://T-Mobile.com/HomeInternet Do we need new math to explain dark matter? Neil deGrasse Tyson and comedian Paul Mecurio explore unsolved problems in math, simulation theory, base systems and more with mathematician Terence Tao. We take a look at the boundary between pure and applied mathematics. You’ll learn intentional simplifications of…
From PBS Space Time. Get a special 35% discount on an annual digital subscription to The Economist at https://www.economist.com/PBS We’ve known that the universe is expanding since 1929, and that its expansion is accelerating since 1998. The culprit behind the acceleration is unknown, so we live with a stand-in term "dark energy". Our modern cosmological…
From DeepSkyVideos. Dr Emma Chapman discusses Cloud-9 – a deep sky object that has all the ingredients of a galaxy except the stars. More links and info in full description ↓↓↓ The First RELHIC? Cloud-9 is a Starless Gas Cloud (paper): https://iopscience.iop.org/article/10.3847/2041-8213/ae1584 Emma Chapman is based a the University of Nottingham. More about her and…
From PBS Space Time. Head to https://brilliant.org/Spacetime/ to start learning for free for 30 days. Plus, our viewers get 20% off an annual Premium subscription for unlimited daily access to everything Brilliant has to offer. Physicists have long believed that detecting the particle of gravity—the graviton—was fundamentally impossible, with the universe itself seeming to block…
From Sixty Symbols. How a quiz question led to a rabbit hole involving James Clerk Maxwell and the rings of Saturn. More links and info below ↓ ↓ ↓ Professor Ed Copeland is a physics professor at the University of Nottingham. More Ed on Sixty Symbols: https://www.youtube.com/playlist?list=PLcUY9vudNKBNtF1y-sneLuyCTE-Mda561 Ed on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJwf-59lYWThTpSj2Ivt5jB On the stability of…
From PBS Space Time. Start speaking a new language in 3 weeks with Babbel 🎉 . Get up to 55% OFF ➡️ Here: https://bit.ly/PBSSpaceTimeJan The universe thrums with quantum fields; and the particles of matter and force emerge as vibrational manifestations of the deep symmetries of these fields. The layers and reflections of those symmetries…
From PBS Space Time. Head to https://brilliant.org/Spacetime/ to start learning for free for 30 days. Plus, our viewers get 20% off an annual Premium subscription for unlimited daily access to everything Brilliant has to offer. To progress to the next level in understanding reality, we need to combine quantum mechanics and Einstein’s general relativity. And…
From Sixty Symbols. Physics Professor Phil Moriarty puts ChatGPT to the test with a second-year quantum mechanics exam… Extra footage from this interview here: https://youtu.be/OOBJh6jyXxU – More links and info below ↓ ↓ ↓ Phil has written a blog to accompany this video and the extra video – https://muircheartblog.wpcomstaging.com/2026/01/12/in-quantum-physics-chatgpt-thinks-outside-the-box-just-a-little-too-much/ The Hull paper by Pimbblet and…
From PBS Space Time. Black holes are not just the strangest objects in the universe, they’re the sharpest test we have of how reality actually works. This episode explores how these extreme cosmic laboratories force general relativity and quantum physics into direct confrontation. We look back through a decade of content to understand their formation…
From PBS Space Time. For 72 hours, enjoy 15% OFF on all Hoverpens with code PBS, or click on the link https://noviumdesign.shop/PBS – Free shipping to most countries. Also on Amazon: https://noviumdesign.shop/crQH4A 2025 is … was the international year of quantum science and technology. Yes because quantum tech is increasingly important, but especially because quantum…
From Sixty Symbols. Our very own Professor Mike Merrifield is honoured with an asteroid, along with his father the archaeologist Ralph Merrifield. More links and info below ↓ ↓ ↓ More videos with Mike – https://www.youtube.com/playlist?list=PLcUY9vudNKBNGAgplgACrGL9UlxyDHq7k 50426 Mikemerrifield (2000 DJ15) – https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=MIkemerrifield 50427 Ralphmerrifield (2000 DT15) – https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=ralphmerrifield Mike Merrifield – https://about.me/michael.merrifield Mike is an…
From PBS Space Time. To learn more visit: https://hensonshaving.com/pbs and use code spacetime to get 100 blades for free with your purchase of a Henson Razor. Add both products to your cart for the code to take effect! There are lots of reasons to search for planets around other stars—exoplanets. A big one is to…
From PBS Space Time. Head to https://brilliant.org/Spacetime/ to start learning for free. Plus, our viewers get 20% off an annual Premium subscription for unlimited daily access to everything Brilliant has to offer Physics is this close to understanding the entire universe. And what lives in this gap? Many physicists think it’s the elusive graviton—the quantum…
From Sixty Symbols. Professor Meghan Gray discusses spirals in space. More links and info below ↓ ↓ ↓ Professor Gray playlist – https://www.youtube.com/playlist?list=PLcUY9vudNKBORQN625NgO3c4T82M6w2st More links 2025 UK: https://www.bbc.co.uk/news/articles/c241073v66jo Nottinghamshire: https://www.bbc.co.uk/news/articles/cdrx8kdj8gjo Reddit thread: https://www.reddit.com/r/nottingham/comments/1jj0pbg/anyone_else_just_seen_this_in_the_sky/ 2023 Alaska: https://www.theguardian.com/us-news/2023/apr/18/northern-lights-spiral-alaska-night-sky-blue-light-spirals-spacex-rocket-fuel 2023 Hawaii: https://www.space.com/spacex-gps-rocket-launch-spiral-hawaii Movie from Mauna Kea (inc telescopes): https://www.youtube.com/watch?v=9dvI2zAA8vY 2009 Crazy Norwegian spiral: https://slate.com/technology/2009/12/awesomely-bizarre-light-show-freaks-out-norway.html Movie: https://www.youtube.com/watch?v=eoTnLTViHJM Simulation that…
From PBS Space Time. Thanks to Displate for sponsoring the video. Get a great Displate deal using my link https://displate.com/l/spacetime or my discount code spacetime Discounts: 1-2 Displate: 33%off 3+ Displates: 38% off Valid on Textra Not valid on Lumino and Limited Edition Antimatter drives sound like science fiction, but they may not be as…
From DeepSkyVideos. Professor Mike Merrifield is back in the Caldwell Catalogue and this time we unexpectedly discuss why the sky is blue… More links and info in full description ↓↓↓ The Iris Nebula is also known as NGC 7023 and Caldwell 4. Mike Merrifield is an emeritus professor from the University of Nottingham. Caldwell Playlist:…
From PBS Space Time. Thank you to Cyber GhostVPN for Supporting PBS. Learn More About Cyber GhostVPN: https://cyberghostvpn.com/PBSSpaceTime Does quantum mechanics allow the future to retroactively influence the past, as in the infamous delayed choice quantum eraser experiment? How about we get an actual quantum physicist–who many of you already know–to show us how to…
From Sixty Symbols. The 2025 Nobel Prize in Physics is awarded "for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit". More links and info below ↓ ↓ ↓ The joint prize winners are John Clarke, Michel H. Devoret and John M. Martinis. More at https://www.nobelprize.org/prizes/physics/2025/summary/ Discussing the prize here…
From PBS Space Time. Click this link: https://www.boot.dev/?promo=spacetime and use my code SPACETIME to get 25% off your first payment for boot.dev Recent findings have brought us closer than we’ve ever been to confirming life beyond the Earth. As we wait for confirmation or otherwise, let’s think about what this will tell us about life…
From PBS Space Time. Learn More About Anydesk: https://anydesk.com/spacetime To observe the quantum nature of gravity and of spacetime itself, we need a particle collider the size of the solar system. Or we could just physics smarter and build one on a lab bench. Here’s how. Sign Up on Patreon to get access to the…
From PBS Space Time. Remove your personal information from the web at https://joindeleteme.com/SPACETIME One of the most important reasons we go to space is to know our own planet better. Today I’m going to tell you about an orbiting facility that literally watches Earth’s biosphere breath and grow and die with incredible resolution. I’ll talk…
From DeepSkyVideos. Professor Mike Merrifield discusses Caldwell 3 (aka NGC 4236) – leading to talk about the tip of the Red Giant Branch and so-called Helium Flashes. More links and info in full description ↓↓↓ Mike Merrifield is an emeritus professor from the University of Nottingham. The M81 group of galaxies: New distances, kinematics and…
From Sixty Symbols. Tony Padilla on the physics of nothing… Learn more about Jane Street internships at https://jane-st.co/internship-ss-25 (episode sponsor) More links and info below ↓ ↓ ↓ Featuring Tony Padilla from the University of Nottingham: https://www.nottingham.ac.uk/physics/people/antonio.padilla More Sixty Symbols videos with Tony: https://www.youtube.com/playlist?list=PLcUY9vudNKBPJmX64Jay51cdZTKMz4ACs More Numberphile videos with Tony: https://www.youtube.com/playlist?list=PLt5AfwLFPxWL8KAJKO3WfHhJcWrJfjgfU Tony’s author page on Amazon:…
From Sixty Symbols. Mike Merrifield discusses the third known interstellar comet to pass through our solar system (3I/ATLAS). More links and info below ↓ ↓ ↓ Deep Sky Videos: https://www.youtube.com/DeepSkyVideos Messier Objects: https://www.youtube.com/playlist?list=PLC9FC5F6773B383D5 More on the comet 3I/ATLAS… https://science.nasa.gov/solar-system/comets/3i-atlas/ https://minorplanetcenter.net/mpec/K25/K25N12.html ESO image: https://www.eso.org/public/unitedkingdom/images/potw2527a/ The paper Mike discusses… https://arxiv.org/pdf/2507.05318 More Mike on Sixty Symbols: https://www.youtube.com/playlist?list=PLcUY9vudNKBNGAgplgACrGL9UlxyDHq7k Mike…
From Sixty Symbols. Professor Mike Merrifield creates his digital doppelganger – then Brady asks them both the same questions. More links and info below ↓ ↓ ↓ Videos on all 110 Messier Objects (featuring Mike Merrifield): https://www.youtube.com/playlist?list=PLC9FC5F6773B383D5 Brady visits the ELT site (before construction): https://www.youtube.com/watch?v=450jt8LlcnY More Mike on Sixty Symbols: https://www.youtube.com/playlist?list=PLcUY9vudNKBNGAgplgACrGL9UlxyDHq7k Mike Merrifield: https://about.me/michael.merrifield Computerphile…
From Sixty Symbols. Professor Meghan Gray discusses space co-ordinates and what sits at position 0,0 in the sky? More links and info below ↓ ↓ ↓ From Prof Gray: “Mea culpa dear viewers – as rightly pointed out by several commenters, the pinch point of the analemma is not where the equinox occurs. Instead it…
From Sixty Symbols. Full interview with Ed from our video about Phantom Dark Energy and findings from DESI… Main video is at https://youtu.be/UDOsuwDeGeE — More links and info below ↓ ↓ ↓ Support Sixty Symbols content via Patreon: https://www.patreon.com/sixtysymbols DESI paper — https://inspirehep.net/files/4e84e8f39981be29846f14e1a3044e5b ACT paper — https://inspirehep.net/files/575b0da26acedbb91d1e259d88f9e251 Tony Padilla and Ed Copeland are based at…
From Sixty Symbols. Tony and Ed discuss some recent findings from the world of Dark Energy. Full uncut interview with Ed is at https://youtu.be/rcgnhoe4LSA — More links and info below ↓ ↓ ↓ Support Sixty Symbols content via Patreon: https://www.patreon.com/sixtysymbols DESI paper — https://inspirehep.net/files/4e84e8f39981be29846f14e1a3044e5b ACT paper — https://inspirehep.net/files/575b0da26acedbb91d1e259d88f9e251 Tony Padilla and Ed Copeland are based…
From Sixty Symbols. Ed Copeland and Tony Padilla answer more viewer questions. More links and info below ↓ ↓ ↓ More from this Q and A session: https://www.youtube.com/playlist?list=PLcUY9vudNKBNLpmQg4SSZ6tMsyDldilnA Ed and Tony are physicists at The University of Nottingham and Sixty Symbols stalwarts. Ed: https://www.nottingham.ac.uk/physics/people/ed.copeland Tony: https://www.nottingham.ac.uk/physics/people/antonio.padilla More Tony videos: https://www.youtube.com/playlist?list=PLcUY9vudNKBPJmX64Jay51cdZTKMz4ACs More Ed videos: https://www.youtube.com/playlist?list=PLcUY9vudNKBNtF1y-sneLuyCTE-Mda561 Patreon:…
From DeepSkyVideos. Full interview with SETI’s Seth Shostak from our video about NGC 2403 – Main video is at — https://youtu.be/kkNWEu5KWkY — More links and info in full description ↓↓↓ Seth Shostak: http://sethshostak.com Seth Shostak’s thesis: https://core.ac.uk/download/pdf/11812191.pdf Messier Objects playlist: http://bit.ly/MessierObjects Back us on Patreon: https://www.patreon.com/deepskyvideos Astronomy at The University of Nottingham: https://www.nottingham.ac.uk/astronomy/ Twitter: https://twitter.com/DeepSkyVideos…
From DeepSkyVideos. Mike Merrifield and Seth Shostak discuss a bewildering discovery in NGC 2403… and an offer to its alien inhabitants — Patreon bonus: https://www.patreon.com/posts/129506586 — Full Shostak video: https://youtu.be/xy2mE07Pp8E NGC 2403 is also known at Caldwell 7 Our video on Caldwell 1 – https://youtu.be/Et2Ij161PXE Our video on Caldwell 2 – https://youtu.be/Or3Db6ENf84 Messier 33 –…
From Sixty Symbols. Professors Ed Copeland and Tony Padilla take on more questions from viewers about Black Holes. More links and info below ↓ ↓ ↓ More from this Q and A session: https://www.youtube.com/playlist?list=PLcUY9vudNKBNLpmQg4SSZ6tMsyDldilnA More Black Hole videos on Sixty Symbols: https://www.youtube.com/playlist?list=PLcUY9vudNKBNnhsKqjZ_pO2Hum73dbJBT Videos at the Large Hadron Collider: https://www.youtube.com/playlist?list=PL7DEC46BD7058D7BB Ed and Tony are physicists at…
From Sixty Symbols. Professor Mike Merrifield discusses meteor showers – and whether it’s possible to hear meteors travel through the sky? More links and info below ↓ ↓ ↓ More videos with Mike: https://www.youtube.com/playlist?list=PLcUY9vudNKBNGAgplgACrGL9UlxyDHq7k Mike Merrifield is an emeritus professor at The University of Nottingham: https://x.com/astromikemerri Photoacoustic Sounds from Meteors: https://www.researchgate.net/publication/313259225_Photoacoustic_Sounds_from_Meteors Green Flash video shown…
From DeepSkyVideos. Abell 1 is the first galaxy cluster in the so-called Abell Catalogue. Professor Meghan Gray has the story. More links and info in full description ↓↓↓ Professor Gray is based at the University of Nottingham – https://www.nottingham.ac.uk/physics/people/meghan.gray More videos with Dr Gray – https://www.youtube.com/playlist?list=PLcUY9vudNKBORQN625NgO3c4T82M6w2st Messier Objects playlist: http://bit.ly/MessierObjects Back us on Patreon: https://www.patreon.com/deepskyvideos…
From DeepSkyVideos. Professor Mike Merrifield on the second entry in the so-called Caldwell Catalogue, a planetary nebula with a fascinating story to tell. More links and info in full description ↓↓↓ More Caldwell Catalogue videos: https://www.youtube.com/playlist?list=PLXJEVJey9Wz4RQK6uXH0O0t9504NnyzJL Mike Merrifield is an emeritus professor from the University of Nottingham. Messier Objects playlist: http://bit.ly/MessierObjects Back us on Patreon:…