Space
From Dr. Becky. AD – To try everything Brilliant has to offer visit https://brilliant.org/DrBecky and you’ll also get 20% off an annual premium subscription which gives you unlimited daily access to Brilliant. | Welcome to this episode of Night Sky News for September 2025 with me, astrophysicist Dr Becky Smethurst! This is the show where…
From Dylan O’Donnell. I was a little confused so I thought I’d share the process with others, but any scope that supports a reducer is worth trying it out with. EASY MODE ENGAGED! No ads today! Just enjoying my portable astro rig! Apertura 75Q Telescope : https://bit.ly/4hW25cb Aperture 75Q Reducer : https://bit.ly/4pulghv Skywatcher 100i Mount…
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 Dr. Becky. How do we actually detect dark matter? Matter that doesn’t give out light, doesn’t reflect light, doesn’t absorb light: nothing. The only reason we know its there and have so much evidence for its existence is because of our observations with telescopes when we see its gravitational pull and effect on other…
From Dr. Becky. A huge goal for astrophysics is to work out whether Earth is special or not. Are there other Earth-like rocky planets out there with thick atmospheres and life giving oceans, just the right distance from their stars so they’re not too hot and not too cold for life to flourish? Or did…
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 Dr. Becky. AD | Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 40% off the Vantage plan through my link for unlimited access | Our best chance of finding intelligent life out there in the Universe that we could even hope to have any communications with is…
From Dylan O’Donnell. You spend 40 hours taking a photo of a nebula and you can’t take 10 seconds to fill out your name on this Dark Sky Petition??? LINK TO PETITION https://www.aph.gov.au/e-petitions/petition/EN7346 Send this video to your local astronomy club. Also if the members don’t sign it, kick them out of the club. Ok…
From Dr. Becky. The things we don’t know are what drives science forward. A lack of knowledge, of not knowing the answer to a question is what pushes scientists to get more data, or design a new experiment. And in the case of astrophysics, those new experiments are often entirely new observatories, either on the…
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 M 81 group of galaxies: New distances, kinematics…
From Dr. Becky. Have you ever looked up at the night sky and wondered how massive can stars be? Or what is the biggest star out there? Is there even a limit to how massive they can be? Well we can try and answer this question in two ways – first with theory, with our…
From Dylan O’Donnell. Failing / Learning in real time for your entertainment. I dial the Sky-Watcher 100i mount in even better and learn a few more things about Strainwave mounts. Also I don’t know how/why this works. If you want to buy one RRP PRICE here : https://bit.ly/3UwinhB "Music: Ultraviolet by KaizanBlu" Support the channel…
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 PBS Space Time. Learn More About Anydesk: https://anydesk.com/spacetime In 1987, Steven Weinberg wrote a cute little paper entitled “Anthropic Bound on the Cosmological Constant”. I say cute little paper because it feels minor in comparison to, say, electroweak unification theory that won him the Nobel Prize. Weinberg was foundational in establishing the standard model…
From Dr. Becky. AD | Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 40% off the Vantage plan through my link for unlimited access | Hello and welcome to this episode of Night Sky News for August 2025 with me, astrophysicist Dr Becky Smethurst! This is the show…
From Dr. Becky. AD – To try everything Brilliant has to offer for free for a full 30 days, visit https://brilliant.org/DrBecky and you’ll also get 20% off an annual premium subscription. | Just like in biology, astrophysics has its own “what came first, the chicken or the egg?” question. In this case it’s “what came…
From PBS Space Time. Thanks to Displate for sponsoring the video. Use code SPACETIME at checkout for exclusive discounts on your order at https://displate.com/@spacetime 25% off for 1 Displate, 32% off for 2 to 3, 37% off for 4 and more. Valid on Textra. Not valid on Limited Edition & Lumino. The multiverse pops out…
From Dr. Becky. AD – Click this link https://boot.dev/?promo=DRBECKY and use my code DRBECKY to get 25% off your first payment for boot.dev. | Here’s two things that we know to be true about black holes: 1) when a massive star dies and goes supernova, the core of the star collapses under gravity to form…
From Dylan O’Donnell. Yes. it’s daddy’s first strain wave mount for astrophotography and you know what? Daddy Like! EDIT – it does have home encoders ! I just didn’t use it (available from the app) Check out the full specs here: – strain wave design, (harmonic). – weighs 4.3kg, – payload capacity of 10kg –…
From PBS Space Time. PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs.org/DonateSPACE The molecular basis of all life is mysteriously asymmetric, only using molecules on one side of what should be the equivalent mirrored pairs. The universe has a similar mirror asymmetry, and it may be that our…
From Dylan O’Donnell. It’s great when something so cheap is such a worthwhile addition your to your portable astrophotography rig. That doesn’t happen a lot in this hobby! QHY OAG : https://bit.ly/4kEK4Qf Support the channel by buying Dylan’s Telescopes, Cameras & Equipment using the links below! EQUIPMENT LIST ———— Celestron 14" Edge HD Telescope https://bit.ly/3BGKuEL…
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 Dr. Becky. AD – Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 40% off the Vantage plan through my link for unlimited access | Hello and welcome to this episode of Night Sky News for July 2025, with me astrophysicist Dr Becky Smethurst. This is the show…
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 Dr. Becky. AD – To try everything Brilliant has to offer for free for a full 30 days, visit https://brilliant.org/DrBecky and you’ll also get 20% off an annual premium subscription | Us astronomers and astrophysicists have been waiting for this moment for a LONG time: the first images from the Vera Rubin Observatory in…
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 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 Dr. Becky. AD – Get an exclusive 15% discount on Saily data plans! Use code DRBECKY at checkout. Download the Saily app or go to https://saily.com/drbecky | Will our Milky Way galaxy, our island in the universe of 100 billion stars, one day collide with our neighbour the Andromeda galaxy? Because when we observe…
From Dylan O’Donnell. Breaking News update on the Dragon’s Egg Nebulae and a new personal best total RMS of 0.20" ?!? – Crazy good guiding. ZWO 2600MM Duo Cooled CMOS 16bit Camera https://bit.ly/3TuzJem AND – Special Thanks to show sponsor SCOPE TRADER Magazine! https://scopetrader.com Use coupon STARSTUFF for 50% OFF a subscription 🙂 .. and…
From Dr. Becky. AD – To try everything Brilliant has to offer for free for a full 30 days, visit https://brilliant.org/DrBecky and you’ll also get 20% off an annual premium subscription. | The Nobel Prize in Physics is the biggest prize in all of physics – it’s what every scientist secretly hopes their work will…
From Dr. Becky. 🚨 I’m going LIVE to bring you an exclusive front-row seat to the Young Inventors Prize 2025, a high-energy, interactive show celebrating brilliant inventors under 30! 🌟 🎥 Streaming LIVE from Iceland, I’ll take you inside the action: 🥇 Meet the winners 💡 Discover mind-blowing inventions 🏆 Get inspired by the next…
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 Dr. Becky. AD – Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 40% off the Vantage plan through my link for unlimited access | Hello and welcome to this episode of Night Sky News for June 2025 with me, astrophysicist Dr Becky Smethurst. This is the show…
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 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 Dylan O’Donnell. If it was easy, everybody would do it. But it’s not, and that’s why we astrophotographers are masochists with low self esteem. This inspirational video is brought to you by High Point Scientific 🙂 https://bit.ly/4ez1GtO Support the channel by buying Dylan’s Telescopes, Cameras & Equipment using the links below! EQUIPMENT LIST ————…
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 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 Around 2 billion years ago, life had plateaued in complexity, ruined the atmosphere, and was on…
From Dylan O’Donnell. I have emerged from the conclave with 20 commandments on stone tablets to share with the other OCD astrophotographers. *Parts the pixels with his bare hands* You’re free now, brothers… as long as you literally obey all these rules forever and ever. Support the channel by buying Dylan’s Telescopes, Cameras & Equipment…
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 Dylan O’Donnell. How am I supposed to do nighttime astronomy when there is all this cool daytime solar stuff to do? I am being pulled in both directions. NOTE : I fiddled the collimator knob which you shouldn’t actually do on the sun ideally, but can be done separately to focus. Minh has more…
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 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 Dylan O’Donnell. Market uncertainty starts to affect the astrophotography community, especially in the USA. Let’s talk. Support the channel by buying Dylan’s Telescopes, Cameras & Equipment using the links below! EQUIPMENT LIST ———— Celestron 14" Edge HD Telescope https://bit.ly/3BGKuEL Esatto Robotic Focuser: https://bit.ly/3CB8sBY Celestron 11" Edge HD Telescope https://bit.ly/3JB95JE Baader 2" high Speed Filters…
From Dylan O’Donnell. What would you do if you had a million dollars? I’ll tell you what I’d do, man: two telescopes at the same time, man. I always wanted to do that, man. And I think if I were a millionaire I could hook that up, too. Thanks to the legends at TESTAR for…
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 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 Dylan O’Donnell. Does your astronomical observatory need some self-awareness about its environment? Watch me repair and upgrade the Lunatico Cloudwatcher and even extend it’s functionality a little! Oh and you can check my real time data here : BBO – AAG Solo Weather Station This video isn’t sponsored but you can check our Lunatico…
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. Thank you to Cyber GhostVPN for Supporting PBS. 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…
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:…
From Sixty Symbols. Trajectories of Asteroid 46925 Bradyharan… Courtesy of Alexander Bock. Music by Alan Stewart. More links and info below ↓ ↓ ↓ See all the videos about the asteroid at this playlist: https://www.youtube.com/playlist?list=PLcUY9vudNKBO4UqGylRzFFLZL8wEkRbpo Trajectories rendered by Alexander using the open-source astrovisualization software OpenSpace (http://openspaceproject.com), developed in collaboration between American Museum of Natural History,…
From Sixty Symbols. Newly-named 46925 Bradyharan – see full interviews and more at this playlist: https://www.youtube.com/playlist?list=PLcUY9vudNKBO4UqGylRzFFLZL8wEkRbpo More links and info below ↓ ↓ ↓ David Rankin from Catalina Sky Survey: https://catalina.lpl.arizona.edu Daniel Bamberger at Northolt Branch Observatories: https://www.facebook.com/NBObservatories Mike Merrifield: https://x.com/AstroMikeMerri Adam Block: http://adamblockphotos.com Asteroid info at SSD JPL: https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=Bradyharan&view=VOP Asteroid info at MPC: https://www.minorplanetcenter.net/db_search/show_object?utf8=%E2%9C%93&object_id=Bradyharan…
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 DeepSkyVideos. Professor Meghan Gray discusses the double star Albireo (also known as Beta Cygni) at the head of swan in the constellation Cygnus… More links and info in full description ↓↓↓ Messier Objects playlist: http://bit.ly/MessierObjects Telescopes playlist: https://www.youtube.com/playlist?list=PLFDDC58C2516AE284 Back us on Patreon: https://www.patreon.com/deepskyvideos More videos with Meghan Gray: https://www.youtube.com/playlist?list=PLcUY9vudNKBORQN625NgO3c4T82M6w2st Some papers from this video……
From Sixty Symbols. Ed Copeland and Tony Padilla answer a viewer question about the rights/wrongs of String Theory and its proof … More links and info below ↓ ↓ ↓ Ed and Tony are physicists at The University of Nottingham and Sixty Symbols stalwarts. More from this Q and A session: https://www.youtube.com/playlist?list=PLcUY9vudNKBNLpmQg4SSZ6tMsyDldilnA Ed: https://www.nottingham.ac.uk/physics/people/ed.copeland Tony:…