SEA: Space Exploration & Astronomy

Епизоде

• Do We Live in a Multiverse? 05.07.2026 34мин

  Are we living in a multiverse? If so, where are all the other universes? Scientists and philosophers have pondered these questions for centuries, as they contemplated the possibility of parallel universes. The multiverse theory is not often discussed by cosmologists, due to its speculative and untestable nature. However, there are myriad different interpretations depicting how a multiverse might manifest, some of which we may be detectable within our own universe. So buckle up, because in this video we will be leaving the galaxy entirely, as we take on the biggest question of them all- the question of whether our universe is the only one. SOUNDTRACK (In Order):1. Cold Aegean Waters | Humans Win2. Meditative Bliss | Humans Win 3. Wholesome Waves | Humans Win4. Blue Aukai | Humans Win5. Zen Garden Whispers | Humans Win6. Mindfulness Focus Meditation Podcast | Music Media Group7. Calming Ombre | Humans Win8. Shadows and Dust (Scott Buckley)The track by Scott Buckley was provided via a Creative Commons Attribution licence, which allows reuse where credit is given. Scott Buckley's website and library can be found at the following link: https://www.scottbuckley.com.auCHAPTERS: 00:00: The Biggest Question of Them All 03:08: Infinite Cosmos (Level 1 Multiverse)06:53: Cosmic Inflation10:09: Post-Inflationary Bubbles (Level 2)12:46: Cyclical Multiverse (Level 2) 16:45: Fecund Multiverse (Level 2) 20:27: String Theory Landscape (Level 2) 24:15: Quantum Theory 26:52: Quantum Multiverse (Level 3) 29:17: Mathematical Multiverse (Level 4)31:24: Simulated Reality (Level 4)
• The Insane Science of Neutron Stars 28.06.2026 39мин

  In the late 1960s, a series of anomalous, repeating radio sources began cropping up all over the Milky Way galaxy, and though initially speculated to be messages from aliens, we soon learned that they are Pulsars, a rapidly rotating neutron star emitting high volumes of radiation. In this video, we will revisit these extreme, dense objects, as the final gateway faced by matter before it collapses into a black hole. This is the insane science of neutron stars. SOUNDTRACK: - Jokulls Loom (Storyblocks)- Be Here Now (Storyblocks)- Serenity (Storyblocks)- Falling Through a Dream (Storyblocks)- Sleep for Wellness (Storyblocks)- Peaceful Background Pad (Storyblocks)- Halloween in a Haunted House (Storyblocks)- Underworld (Storyblocks)- Dramatic Ambient Cinematic Music (Storyblocks)- Monomyth, The Fall (Scott Buckley): https://www.scottbuckley.com.au/library/the-fall/- Ambient Water (Storyblocks)- The Natural Ambient (Storyblocks)The track by Scott Buckley was provided via a Creative Commons Attribution licence, which allows reuse where credit is given. Scott Buckley's website and library can be found at the following link: https://www.scottbuckley.com.auCHAPTERS: 00:00: The Crab Nebula01:55: How is a Neutron Star Formed? 07:24: Radio Pulsars11:18: X-Ray Binary Pulsars13:24: Millisecond Pulsars16:51: Magnetars 20:42: Starquakes 23:49: When Neutron Stars Collide 29:09: Quark Stars32:23: Strange Stars36:03: Thorne-Zytkow Objects
• Collisions of the Early Solar System 21.06.2026 34мин

  How did Earth get its moon? Why is Mercury so close to the sun? Why does Uranus orbit on its side? The answers to all of these questions are the many collisions that ravaged the early Solar System. Each of our neighbouring worlds bears scars which echo their violent past, from the many craters of the moon's battered surface, to the sideways rings of the planet Uranus. And in this video, we will examine a number of the most significant collisions, which each played a pivotal role in building up the Solar System as we know it today. SOUNDTRACK: - The Ghost of Aberbeeg | CO.AG Music - Edge of Silence, Ambient Sounds 06 | CO.AG Music - Balefire | Scott Buckley Creative Commons Music - Short Song 011023 | Chris Zabriskie Creative Commons Music - Short Song 020823 | Chris Zabriskie Creative Commons Music- Speak to Me | CO.AG MusicCO.AG Music: https://www.youtube.com/@co.agmusic1823Scott Buckley Music: https://www.scottbuckley.com.auChris Zabriskie Music: https://chriszabriskie.bandcamp.comCHAPTERS:00:00: Introduction 01:37: The Terrestrial Planets03:33: Collision that Formed the Moon 06:07: Giant Impact Hypothesis09:42: What Happened to Mercury? 13:37: Late Heavy Bombardment16:45: What Rammed into Uranus?20:32: The Dwarf Planet 23:43: Pluto & Charon's Moons27:25: Sputnik Planitia32:58: Closing
• A Glimpse of the Sun 14.06.2026 35мин

  The Sun... both the giver of life, and destroyer of worlds. Host of the eight planets, and incubator of Earth with its light and heat. Yet in spite of its brilliance, the true nature of the sun's power remains shrouded in mystery, with scientists unable to explain many of the processes playing out in its atmosphere. But in 2024, NASA will attain their closest glimpse of the sun so far, as they come just five million miles from its surface, diving into the stellar Nether Zone, to "touch" the sun itself.BACKGROUND TRACK: "Christmas Ambience" by CO.AG MusicSong: https://youtu.be/e23_O1koRiA?si=5gebdLo6tpmIQpY3Artist: https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvACHAPTERS:00:00: Welcome... 01:45: Anatomy of the Sun 05:03: The Coronal Mystery 08:21: Space Weather & the Solar Cycle11:59: Geomagnetic Storms15:31: The Carrington Event18:38: A Geomagnetic Storm in 2024?22:20: Missions to Study Space Weather 25:02: The Parker Solar Probe 30:28: Parker's 2024 Mission
• Back to the Moon with Artemis 07.06.2026 30мин

  It's been more than half a century since humans last went to the Moon. But we will return before the decade is up, through NASA's revolutionary Artemis Program. But unlike its ancestral Apollo Program, Project Artemis is about more than just landing astronauts on the lunar surface. Its endgame is to enable us to stay there, and keep going back to a semi-permanent surface habitat- all in preparation for NASA's yet more ambitious, daunting endeavour of the 2030s- to reach the Red Planet, Mars. SOUNDTRACK: "Finding Direction" - CO.AG Music(https://www.youtube.com/watch?v=Xptr7cYeDBA)"Her Smile Feeding the Cold Earth" - CO.AG Music (https://www.youtube.com/watch?v=G7gX08Ww6lY)"Are You in Here With Us?" - CO.AG Music (https://www.youtube.com/watch?v=68e7Yqt0q_Q)"Floating Through Black" - Boomer (Storyblocks Media)"Echoes" - Enzo Orefice (Storyblocks Media)"Nightlife" - CO.AG Music (https://www.youtube.com/watch?v=9PE2XxNWj0M)"Enchanted Winds" - Humans Win (Storyblocks Media)"Still" - Humans Win (Storyblocks Media)"Meditation Yoga Ambient" - Watermello (Storyblocks Media)CO.AG's Channel: https://www.youtube.com/@co.agmusicCHAPTERS: 00:00: Artemis II 02:15: Road to the Moon Landing 07:09: The Apollo Program 13:31: The New Space Race18:00: The Artemis Program 21:32: Artemis III23:22: Artemis IV: The Next Moon Landing26:04: Moon to Mars
• Voyager: Beyond the Solar System (Probes Episode #3) 31.05.2026 44мин

  Of all the spacecraft to have visited other worlds, there are two which have travelled further than any other, discovering more about the Solar System than their inventors ever could have imagined. They are the legendary pair of Voyager Probes- still the only spacecraft ever to have visited the Ice Giant planets, Uranus and Neptune. The story of their 40 years in space makes up the topic of our video today- from the gas giants, to the ice worlds, and then out into the depths of interstellar space...SOUNDTRACK: - Just a Shadow | CO.AG Music (https://youtu.be/pRDzXIV5yKg?si=Z4ooBaD1wZmV_Y7B) - Deep Sleep | Amber Waldron (Storyblocks)- Beyond This Earth to the Stars | CO.AG Music(https://youtu.be/aPQl1d96_Bk?si=sLbl_gG8oqhcwuW0)- Contemplative | Amber Waldron (Storyblocks)- Spa Go | Gushito (Storyblocks) - Descend Into Horror 5 | CO.AG Music(https://youtu.be/Ev49l2ZGFmg?si=Cj4CUoob2wRCjSaQ)- Guitar Drone Meditation | Humans Win (Storyblocks)- SpaceShip | Jayson Wayne Brown (Storyblocks)CO.AG's Channel: https://www.youtube.com/@co.agmusicCHAPTERS00:00: Welcome Back01:31: The Grand Tour 06:00: Voyager-1's Gas Giants Mission09:40: Voyager-1's Titan Flyby12:27: The Pale Blue Dot14:30 Voyager-2's Gas Giant Mission18:15: Voyager-2's Uranus Encounter 21:24: Voyager-2's Neptune Encounter25:00: Exiting the Heliosphere 29:19: The Interstellar Mission 34:04: One Final World... (Pluto)37:05: New Horizons Kuiper Belt Mission42:48: An Unconventional Signature...
• Race to the Terrestrial Planets (Probes Episode #1) 17.05.2026 39мин

  From studying the dusty surface of Mars, to plunging into the atmosphere of Venus, over the last 60 years, we've launched hundreds of probes into space on trajectories to visit each of the terrestrial planets. But for all the fascinating discoveries made on the way, humanity's journey towards the stars started out in a much darker place- a battlefront between the world's then two great competing superpowers. And in this first episode on my new series on probes, we will revisit this space race, and the major milestones on route to visiting each of the terrestrial planets.CHAPTERS:00:00: Introduction02:32: The Space Race 04:48: Pioneer Probes07:32: Mariner Probes09:55: Mariner 4 Mars Mission12:27: Mariner 6 & 714:27: Mars Orbiters17:05: Landing on Mars 18:57: Landing on Venus 21:30: The Viking Probes26:12: Mercury Missions33:00: Mars Rover Missions 38:16: To be Continued...
• The Final Age of the Solar System (Part 2) 10.05.2026 30мин

  Earth is a success story, a thriving world that has hosted life for almost 4 billion years. But, no matter how peaceful things are now, a new age is coming for the Solar System. An age of change, destruction and evolution. A place for new worlds and new stories, but one in which the Earth has no place.MUSIC:- Dreamscape - Density & Time - The Unknown - CO.AG Music - https://youtu.be/IFYTGVE1aRs- Sunrise on Mars - Audionautix- As Prevent You Do - pATCHES - At the Foot of the Sphinx - Twin Musicom - It Maintains, Eyes Change - Puddle of Infinity - Growing Space - Astron - The Blue Pearl - Jesse Gallagher - Kallimachou - Dan Bodan Sunrise on Mars by Audionautix is licensed under a Creative Commons Attribution 4.0 license.https://creativecommons.org/licenses/by/4.0/Artist: http://audionautix.com/CHAPTERS: 00:00: Welcome Back00:15: The Next Billion Years 06:10: Milkdromeda Collision08:03: The Red Giant Branch13:12: Habitable Moons16:27: Titan 21:00: Titan's Prospects for Life23:24: Horizontal and Asymptotic Giant Branch26:52: The White Dwarf Sun29:19: The Solar System's Last Day
• The Birth of the Solar System (Part 1) 03.05.2026 35мин

  The Solar System is vast and diverse, home to eight large planets, including one which gave rise to life. While humanity was born too late to witness the events that occurred at the birth of the Solar System first-hand, by peering into the surroundings of others stars, we are starting to piece together the events that unfolded at the birth of our own Solar System. Today, we shall explore the culmination of these decades of research, as we tell the story of the birth of the Solar System.MUSIC: - In the Throes - Asher Fulero- Song of Sadhana - Jesse Gallagher - Lord of the Dawn - Jesse Gallagher - Cylinder Three - Chris Zabriskie- Let Your Enemies Feel the Weight of Your Burdens - Chris Zabriskie - Lost Kingdom - CO.AG Music - Underwater Exploration - Godmode- The Sky is on Fire - CO.AG - I Am Running a Marathon - Chris Zabriskie- Somnolent - The TidesCO.AG's can be found on his YouTube channel:https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvAAll songs by Chris Zabriskie are licensed under a Creative Commons 4.0 Attribution License. https://creativecommons.org/licenses/by/4.0/Artist: http://chriszabriskie.com/CHAPTERS:00:00: Introduction 01:11: The Solar System 04:44: The Nebular Hypothesis 07:27: Star Formation 11:54: Planetary Formation Window 18:20: The Story of the Solar System 21:34: Rise of the Gas Giants 25:23: The Terrestrial Planets 30:46: Three Water Worlds
• The James Webb Telescope (2022 Version) 26.04.2026 35мин

  On December 25th, 2021, NASA's most sophisticated, ground-breaking and expensive observatory ever blasted off from the Earth. The James Webb Telescope is an infrared observatory, capable of looking back all the way to the universe's first light. In this video, we will explore how this initiative came to be, and what the future holds in this exciting new age of astronomy. SOUNDTRACK:- Valhalla [Long Version] - CO.AG Music - Show Me the New Way - CO.AG Music - The Deep [Long Version] - CO.AG Music- I Am Blessed - CO.AG Music - Is This The Way It Ends - CO.AG Music- The Young & Old Know Love - Puddle of Infinity (YouTube Audio Library)CO.AG Music's Channel: https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvACHAPTERS:00:00: Lift-off! 01:39: Background03:55: Webb's Troubled Development08:17: Webb's Mirrors10:48: Surveying in Infrared 13:51: Webb's Sunshield & Orbit16:52: Deployment Phase 22:06: The Cosmic Dawn24:14: Light from the First Stars 28:02: Search for Habitable Exoplanets30:46: Other Uses for Webb
• When Black Holes Collide 19.04.2026 26мин

  Black holes are fascinating in so many ways- especially when you put two of them together. Their resonance and orbit physically ripples space itself, emitting waves that can travel through space for billions of years. Since 2016, we have been able to detect these gravitational wave events, and earlier this month, we detected a record-breaking one. SOUNDTRACK:- Wander - Emitt Fenn (YouTube Audio Library)- A Slow Dream - Emily A. Sprague (YouTube Audio Library)- Nexus Dawn - CO.AG: https://www.youtube.com/watch?v=oTrZx2KM6JA&t- Last Night I Dreamt I Saw True Love In Your Eyes - Chris Zabriskie: https://soundcloud.com/chriszabriskie/last-night-i-dreamt-i-saw-true- Passing a Foreign Moon - I Think I Can Help You (YouTube Audio Library)- Thin Places - Jesse Gallagher (YouTube Audio Library)- Running Out of Time - CO.AG: https://www.youtube.com/watch?v=P13lnycYaeI- Sound of the Earth EM White Noise: https://www.youtube.com/watch?v=QB2AK-odiocCO.AG's Channel: https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvAAll tracks by Chris Zabriskie licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)Artist: http://chriszabriskie.com/CHAPTERS:00:00: Introduction01:08: What is a Black Hole?04:07: Types of Black Hole05:26: Misconceptions About Black Holes08:46: Anatomy of Black Holes12:26: Inside the Black Hole14:09: Intermediate Mass Black Holes15:17: Black Hole Mergers17:09: Gravitational Wave Signals 19:12: The Pair Instability Gap23:03: The Big Crunch
• Dwarf Planets: Lesser Worlds 12.04.2026 27мин

  The Solar System is home to eight principal planets, but this is far from the full picture. Hidden beyond the orbit of Neptune are dozens of small, icy worlds, known as Dwarf Planets, or Minor Planets! The best example is Pluto, but there are dozens more orbiting within the same band of material in the outer Solar System. Today, we will visit these frozen, far out worlds first hand.MUSIC:- Mist - Odonis Odonis- Lucid Haze - Amulets - Shallow Depths - jAde Wii - At the Foot of the Sphinx - Twin Musicom - Length of Light - Amulets - Crystaline - Amulets - Doll Dancing - Puddle of Infinity - I Am Running Down the Long Hallway - Chris Zabriskie- Jesu, Joy of Man's Desiring - Kevin MacLeodAt the Foot of the Sphinx by Twin Musicom is licensed under a Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/Artist: http://www.twinmusicom.org/I Am Running Down the Long Hallway of Viewmont Elementary by Chris Zabriskie is licensed under a Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/Source: http://chriszabriskie.com/honor/Artist: http://chriszabriskie.com/Jesu, Joy of Man's Desiring by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100189Artist: http://incompetech.com/CHAPTERS:00:00: Introduction01:52: Minor Planets 05:34: Ceres 09:15: The Kuiper Belt 11:49: Pluto16:43: Why the IAU Demoted Pluto 17:46: Eris 20:17: Haumea 22:08: Makemake 24:24: Arrokoth
• The Oort Cloud: The Solar System's Shell 05.04.2026 23мин

  What lies at the edge of the Solar System? Far beyond the orbit of Neptune and the Kuiper Belt, deep into interstellar space, we find a vast, thick shell of icy space debris. We have never seen it directly, but we know it exists- because it is the source of the most distant comets that we see entering the Solar System. So why is it there? Today we'll find out.All background songs in this video were sourced from the royalty and attribution-free YouTube Audio Library. CHAPTERS:00:00: Introduction 02:01: The Oort Cloud 05:18: The Scale of the Cloud06:47: Formation of the Oort Cloud 09:33: The Source of All Comets13:17: The Hills Cloud14:40: Sedna16:12: The Outer Oort Cloud17:13: Siding Spring, Hale Bopp, Lovejoy19:20: Future Missions to the Oort Cloud 21:46: Extra-solar Oort Clouds
• Moons Beyond the Solar System 29.03.2026 17мин

  Most large planets have moons. We have discovered almost 200 in our Solar System alone, and so we expect that the Milky Way is teeming with many more- perhaps even outnumbering planets and stars. With so many moons, it adds a plethora of additional holdouts in the galaxy capable of supporting life, and thus they are tantalising targets for scientists. However, extra-Solar moons are so insanely distant and dark against the backdrop of space, that them is a tremendous challenge. In this episode, we will cover its story so far.SOUNDTRACK:- Satya Yuga | Jesse Gallagher (YouTube Audio Library) - The Sleeping Prophet | Jesse Gallagher (YouTube Audio Library) - Where in Literally | pATCHES (YouTube Audio Library) - The Golden Present | Jesse Gallagher (YouTube Audio Library) CHAPTERS:00:00: Introduction 01:09: Exomoons04:26: How We Find Exomoons08:53: Kepler 1625 b-i 13:28: Other Exomoon Candidates
• Europa: A Frozen Oasis 22.03.2026 23мин

  Europa is a fascinating moon, which is thought to be hiding a global ocean below its frozen surface. This makes it a hotspot for research and missions, with the ultimate goal being to identify an independent life source. In this video, we will go over this iconic satellite of Jupiter by the numbers, as we blow its perplexing mysteries wide open.All background music came from the Royalty-Free & Attribution-Free YouTube Audio LibraryCHAPTERS:00:00 Introduction00:58: Facts About Europa 04:22: Europa’s Ice Sheet06:52: Missions to Europa09:29: The Subsurface Ocean11:19: Tidal Heating 13:44: Europa's Prospects for Life 18:15: Future Missions to Europa
• Corrupted Stars: Hypothetical Stars that Defy Explanation 15.03.2026 25мин

  Not every star in the universe can be seen shining brightly in the night sky. There are dozens of types of fascinating hypothetical stars, which are characterised by their extreme behaviour. Today, we will be taking a look at a few of these corrupted stars, from the start of the universe right up until the end. MUSIC TRACKS: - Passing a Foreign Moon - I Think I Can Help You (YouTube Audio Library)- The Shadow Self - I Think I Can Help You (YouTube Audio Library)- The Bardo - I Think I Can Help You (YouTube Audio Library)- To Have To In Least Water - pATCHES (YouTube Audio Library)- Surviving the Asteroid Belt - I Think I Can Help You (YouTube Audio Library)- Wander - Emmit Fenn (YouTube Audio Library)- Because for Everything There Is Someone - pATCHES (YouTube Audio Library)- Adrift - ELPHNT (YouTube Audio Library)- Verve - Benjamin Martins (YouTube Audio Library)- Hollows - Houses of Heavens (YouTube Audio Library)- Meeting Again - Emily A Sprague (YouTube Audio Library)CHAPTERS:00:00: Introduction01:29: Population III Stars 04:50: Quasi Stars 07:42: Thorne-Zytkow Objects 10:37: Q-Stars and Exotic Matter 14:02: Quark Stars 15:51: Electroweak Stars 17:39: Strange Matter and Strange Stars20:13: White Dwarfs21:54: Frozen Stars 22:37: Black Dwarfs23:18: Iron Stars
• Ghost Galaxies 08.03.2026 15мин

  Not every galaxy is a fully formed spiral or elliptical galaxy. Some are much smaller, and orbit larger galaxies as well as each other, like ghosts. Today, we will examine these ghost galaxies- the satellites of the Milky Way and Andromeda. SOUNDTRACK:- The Sun is Scheduled to Come Out Tomorrow - Chris Zabriskie - Cylinder Four - Chris Zabriskie- I Can't Imagine Where I'd Be Without It - Chris Zabriskie - Cylinder Two - Chris Zabriskie All tracks by Chris Zabriskie licensed under a Creative Commons Attribution license(https://creativecommons.org/licenses/by/4.0/)Artist: http://chriszabriskie.com/00:00: Antlia 2: A Ghost Galaxy02:16: Dwarf Galaxies 06:14: Types of Dwarf Galaxy08:00: Case Studies 09:14: Magellanic Clouds 12:35: The Triangulum Galaxy
• The Mind-Blowing Scale of Voids & Supervoids 01.03.2026 16мин

  Supervoids are the enormous, empty spaces between galaxy clusters and galaxy filaments. But just because they are empty, doesn't mean they can't be filled with fascinating science! They have taught us a great deal about both galaxy structures in the early universe, and how they grow in the present. And today we'll be venturing into a few of the biggest!MUSIC: - Long Walks [Emily A Sprague] - YouTube Audio Library - Fairy Meeting [Emily A Sprague] - YouTube Audio Library - A Slow Dream [Emily A Sprague] - YouTube Audio Library - Devoid [ELPHNT] - YouTube Audio Library- Rain Cloud Music [Emily A Sprague] - YouTube Audio Library CHAPTERS: 00:00: Emptiness in Space02:04: Defining a Void 03:52: Mapping Voids Around Us04:38: How Voids Form 07:05: The Bootes Void 09:16: Voids and Dark Energy 10:33: The Cold Spot 12:10: The KBC Void
• Large Quasar Groups 22.02.2026 32мин

  Quasars are the brightest phenomenon in the entire universe, able to outshine any type of star, and even entire galaxies containing hundreds of billions of them. They are the product of monster black holes at the centres of large galaxies, and so when we find multi-billion light year clusters of quasars dotted around the early universe, we are forced to reconsider some of our most fundamental assumptions of cosmology.BACKGROUND MUSIC:- Cylinder One - Chris Zabriskie - Descent - The Tower of Light (YT Audio Library)- Dreaming Blue - Sextile (YT Audio Library)- Turn - The Tower of Light (YT Audio Library)- There Are Many Different Kinds of Love - Chris Zabriskie- Retro Dreamscape - Twin Musicom (YT Audio Library)- Flecks of Light - The Tower of Light (YT Audio Library)- Clouded - Public Memory (YT Audio Library)- Trickling Up - Godmode (YT Audio Library)Songs by Chris Zabriskie are licensed under Creative Commons 4.0 Licence: - Artist: http://chriszabriskie.com/- Source: http://chriszabriskie.com/cylinders/00:00: Introduction02:00: What is a Quasar?09:46: The Peak Quasar Epoch11:50: The Search for Quasars20:39: Large Quasar Groups22:15: Cosmic Structures & the Cosmological Principle24:35: The Largest LQGs27:34: Seeing Patterns In Noise
• The Largest Star (2021 Version) 15.02.2026 26мин

  Stars come in a wide range of sizes, but how do we calculate a star's size to determine which is the largest? In this episode, we will find out how stars are measured to determine their mind-boggling sizes, and above all, which of them are the biggest of all.PLEASE NOTE: This one is an older video of mine, back in 2021 when it was thought that the largest known star was Stephenson 2-18. It has since been reassessed as most likely not a member of the Stephenson-2 Cluster, and thus not amongst the candidates for the largest star. I plan to remake this video some time in 2026.SOUNDTRACK: Two songs in this video were made by Chris Zabriskie. (http://chriszabriskie.com/)- Abandon Babylon (Album from which the songs came: https://chriszabriskie.bandcamp.com/album/abandon-babylon)Dark Fog & Ice Demon by Kevin MacLeod are both licensed under a Creative Commons Attribution 4.0 licence.Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1300031 , http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1200061Artist: http://incompetech.com/All other music provided by the YouTube Audio LibraryCHAPTERS:00:00: Introduction01:04: What Are Stars?05:40: How Stars Get Big09:38: Problems with Direct Measurements 11:31: Parallax 13:01: Indirectly Measuring Stars 15:33: VY Canis Majoris 18:30: UY Scuti 22:59: Stephenson 2-18