SEA: Space Exploration & Astronomy

Long ago, the Earth's seven continents were assembled in a giant, sprawling supercontinent known as Pangea. You may've heard of it, but what is often less talked about is what came before. Our planet's current continental chunks have been smashing together and separating for over four billion years, and there have been more than a few "supercontinents" during that time. It is those lost lands that take the stage in this video, as we wind the clock back to the age of the Supercontinents before Pangea.

BACKGROUND MUSIC: (In order of appearance)
- Meanwhile | Scott Buckley: https://www.scottbuckley.com.au/library/meanwhile/
- Ambient Cave | Storyblocks
- Everyone Parts with Everything Eventually | CO.AG Music: https://youtu.be/obyY4n352to?si=eY6KSlBPlWEXcRH8
- Dream a Silent Journey | Storyblocks
- Ambient Strings and Solo Cello for Meditation | Storyblocks
- Lost in Place | Storyblocks
- Time Drift | CO.AG Music: https://www.youtube.com/watch?v=4tQiFbOhHBY&t
- The Disappearance | CO.AG Music: https://www.youtube.com/watch?v=MLjXuckODT8
- Lost at Sea | Storyblocks
- Ascension | Storyblocks

CO.AG Music's Channel: https://www.youtube.com/@co.agmusic

Scott Buckley’s track can be found on his website – released under CC-BY 4.0. www.scottbuckley.com.au

CHAPTERS:
00:00: The Supercontinent Cycle
02:53: Plate Tectonics & Forming Land
05:57: Cratons
08:35: Vaalbara
10:48: Ur
14:03: Kenorland
17:52: Arctica / Atlantica / Nena
20:46: Columbia (a.k.a. "Nuna")
23:35: Rodinia
29:05: Gondwana / Laurasia
31:22: Pangea
34:13: Pangea Proxima?

As rich and life-supporting as the Earth is today, it was once nothing more than a column of dust, dancing in a scorched cyclone of gas. And just how we as humans managed to emerge from this ancient dust makes up the topic of this video today. So join us, as we wind the cosmic clock backwards almost five billion years, from you and I in the present, all the way back to the birth of the solar System, back to when Earth was nothing more than a burning, barren wasteland.

SOUNDTRACK:
The music in this video was created by Scott Buckley and CO.AG Music, their respective tracks are listed below:

Scott Buckley Creative Commons Music: https://www.scottbuckley.com.au/library/
- Undertow: https://www.scottbuckley.com.au/library/undertow/
- Moonlight: https://www.scottbuckley.com.au/library/moonlight/
- Machina: https://www.scottbuckley.com.au/library/?s=machina
- This Too Shall Pass: https://www.scottbuckley.com.au/library/this-too-shall-pass/
- Celestial: https://www.scottbuckley.com.au/library/celestial/
- She Moved Mountains: https://www.scottbuckley.com.au/library/she-moved-mountains/

CO.AG Music: https://www.youtube.com/@co.agmusic1823
- Lufian Sky (CO.AG): https://youtu.be/LLmuc12sS7g
- Dim Light Documentary Music (CO.AG): https://youtu.be/DKV7Lfda2NM
- Lost Time Edit Mix (CO.AG): https://youtu.be/18R8o8J7GMU
- Dream That Summer Dream (CO.AG): https://youtu.be/5jARlSfkVv4
- Another Time, Another Space, Another Place (CO.AG): https://youtu.be/kABg8lGVo28

CHAPTERS:
00:00: Welcome
01:36: Formation of Earth
05:41: Hydrothermal Vents
07:57: The First Lifeforms
10:24: Great Oxidation Event
13:21: Eukaryotes
14:52: Multicellular Lifeforms
19:06: Early Cambrian Creatures
21:21: The Age of Fish
24:54: The First Amphibians
27:24: Pangaea: The Supercontinent
30:40: The Great Die-Off
33:38: The Rule of Dinosaurs
36:16: The Asteroid Extinction
39:10: First Humans
42:09: Closing Statements

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

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!

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?