SEA: Space Exploration & Astronomy

SEA
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I make chilled-out "info-tainment" videos on all-things space related, from the moment of the Big Bang to the end of the universe itself- and everything in between. No AI, written, recorded and produced by a real human. New episodes every Sunday!

  1. hace 4 días

    You Live in a Supervoid

    Do we live in a cosmic void? It might sound like an odd question, but it’s something scientists have debated for decades. Does the Milky Way exist in a region of low cosmic density which is warping our view of the local universe as a result? The answer goes far deeper than you probably realise- and it’s just one of the many perplexing mysteries we’ll be diving into during this video, where voids and supervoids take centre stage. SOUNDTRACK: The music tracks in this video were composed by Enzo Orefice, a royalty-free music creator. In order of appearance they are: - “Psyconaut” - “Submerged In Silence” - “Borealis Glow” - “Timeless Flow” - “Void Waves” - “Stellar Winds” Artist: https://www.music-bay.net/artists/enzo-orefice/ CHAPTERS: 00:00: You Live in a Supervoid 05:55: The Local Void 09:22: Boötes Void 12:06: The Dipole Repeller 15:54: The Mystery of the Cold Spot 23:12: Evolving Dark Energy 28:51: Future Efforts to Study Voids

    You Live in a Supervoid

  2. 2 ago

    Engine Black Holes: The Most Massive Objects in the Universe

    Lying at the cores of most large galaxies, do we find the “largest” type of object in the universe- a supermassive “engine” black hole. They almost always have masses many millions of times that of the sun, while the biggest grow to tens of billions. Exactly what was responsible for seeding these great engines, and building up their immense sizes, is a challenge only the James Webb Telescope can rise to. MUSIC: The majority of tracks in this video are royalty-free tracks from Storyblocks. Exceptions are listed. - The Second One | Enzo Orefice - Falling | Elfiz - Haunting Atmospheric Si-Fi Sounds… | Gerardo Garcia Jr - Meditation Vibes | Sleeping Ghost - Voice | Elfiz - Incarnation | Scott Buckley Scott Buckley’s track can be found on his website: https://www.scottbuckley.com.au/2024/10/new-library-track-incantation/ CHAPTERS: 00:00: The Most Massive Objects 01:48: The Cosmic Dawn 05:33: Primordial Black Holes 07:02: Direct Collapse 09:07: Distant Supermassive Black Holes 13:35: Webb Telescope’s Findings 16:34: The Biggest Black Holes 21:31: The Distant Future 23:12: The End of the Universe 25:13: Hawking Radiation 28:22: Exploding Black Holes!

    Engine Black Holes: The Most Massive Objects in the Universe

  3. 26 jul

    Lost Worlds in the Dark

    Laced within the cold, desolate swathes of the space between stars, lie myriad orphaned planets not tethered to a particular system. They are lost worlds floating in the dark, and there are likely tens of billions in the Milky Way galaxy alone. Today, we will journey through the galaxy in search of these lost worlds in the darkness of interstellar space, and sometimes even, intergalactic space. SOUNDTRACK (In order of appearance): - Guided Meditation | Jon Presstone - A Creepy Atmospheric | Unknown, Storyblocks Media - Alkaidia Obscured Calls | Bzur - Curve | CO.AG Music (https://youtu.be/3uYCzfzmh68?si=3fRFV9NNxM7y6V3y) - Crystal Ray (Cinematic Ambient) | Park Randoux - Ethereal Light Waves | Jon Presstone - Transcendent Bliss | Jon Presstone - The Slow Passage of Time | Jon Presstone - A New Galaxy | Jayson Wayne Brown CO.AG Music's Channel: https://www.youtube.com/@co.agmusic CHAPTERS: 00:00: In the Space Between Stars… 02:00: Rogue Planets 07:19: Failed Stars 09:26: James Webb Telescope’s JUMBO Discovery 13:31: Sedna 16:05: ETNOs 19:07: Planet 9? 22:22: How was Planet 9 Lost? 25:30: The Ongoing Search for Planet 9 28:23: A New Candidate?

    Lost Worlds in the Dark

  4. 19 jul

    The Fundamental Forces of Nature

    The universe as we experience it is rendered by myriad physical processes and interactions, but they all can be boiled down to one of four fundamental forces of nature. Gravity is one of these fundamental interactions, while the visible light we observe makes up part of another. And by understanding all four, we can gage comprehensive insights into our reality, from its tiniest particles to its largest galaxies. SOUNDTRACK: - Lavender | CO.AG Music (https://youtu.be/9CI7_qZay8g?si=RmeHPTy7QCgMvz3W) - Dark Undertones | CO.AG Music (https://youtu.be/nk6UosTVZZ8?si=OmDZIatdv5k_oDqK) - Haunted Cave | Efliz (Storyblocks Media) - Lucid | Michael Vignola (Storyblocks Media) - Abandoned Town | Efliz (Storyblocks Media) - Awareness Fades First Movent | CO.AG Music (https://youtu.be/NIh86kMK91U?si=Oqv7RsxupKDtrFQo) - Deep Meditation | Giuseppe Rizzo (Storyblocks Media) - Dreaming Blue | Sextile (YouTube Audio Library) - Her Eyes Just Shine | Humans Win (Storyblocks) Check out CO.AG's Channel: https://www.youtube.com/@co.agmusic CHAPTERS: 00:00: Four Fundamental Forces 03:14: The Nature of Gravity 07:06: The Grand Unified Force 10:37: Electroweak Epoch 13:06: The Strong Force 16:38: The Weak Force 19:27: Neutrinos & the Lepton Epoch 23:51: Let There Be Light 28:28: The Radio Spectrum 30:55: Optical Wavelengths 36:30: Ionizing Radiation 40:33: The End

    The Fundamental Forces of Nature

  5. 5 jul

    Do We Live in a Multiverse?

    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 Win 2. Meditative Bliss | Humans Win 3. Wholesome Waves | Humans Win 4. Blue Aukai | Humans Win 5. Zen Garden Whispers | Humans Win 6. Mindfulness Focus Meditation Podcast | Music Media Group 7. Calming Ombre | Humans Win 8. 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.au CHAPTERS: 00:00: The Biggest Question of Them All 03:08: Infinite Cosmos (Level 1 Multiverse) 06:53: Cosmic Inflation 10:09: 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)

    Do We Live in a Multiverse?

  6. 28 jun

    The Insane Science of Neutron Stars

    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.au CHAPTERS: 00:00: The Crab Nebula 01:55: How is a Neutron Star Formed? 07:24: Radio Pulsars 11:18: X-Ray Binary Pulsars 13:24: Millisecond Pulsars 16:51: Magnetars 20:42: Starquakes 23:49: When Neutron Stars Collide 29:09: Quark Stars 32:23: Strange Stars 36:03: Thorne-Zytkow Objects

    The Insane Science of Neutron Stars

  7. 21 jun

    Collisions of the Early Solar System

    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 Music CO.AG Music: https://www.youtube.com/@co.agmusic1823 Scott Buckley Music: https://www.scottbuckley.com.au Chris Zabriskie Music: https://chriszabriskie.bandcamp.com CHAPTERS: 00:00: Introduction 01:37: The Terrestrial Planets 03:33: Collision that Formed the Moon 06:07: Giant Impact Hypothesis 09:42: What Happened to Mercury? 13:37: Late Heavy Bombardment 16:45: What Rammed into Uranus? 20:32: The Dwarf Planet 23:43: Pluto & Charon's Moons 27:25: Sputnik Planitia 32:58: Closing

    Collisions of the Early Solar System

  8. 14 jun

    A Glimpse of the Sun

    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 Music Song: https://youtu.be/e23_O1koRiA?si=5gebdLo6tpmIQpY3 Artist: https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvA CHAPTERS: 00:00: Welcome... 01:45: Anatomy of the Sun 05:03: The Coronal Mystery 08:21: Space Weather & the Solar Cycle 11:59: Geomagnetic Storms 15:31: The Carrington Event 18:38: A Geomagnetic Storm in 2024? 22:20: Missions to Study Space Weather 25:02: The Parker Solar Probe 30:28: Parker's 2024 Mission

    A Glimpse of the Sun
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I make chilled-out "info-tainment" videos on all-things space related, from the moment of the Big Bang to the end of the universe itself- and everything in between. No AI, written, recorded and produced by a real human. New episodes every Sunday!

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