SEA: Space Exploration & Astronomy

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?

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

What is the Sound of Space? The idea that it is a silent vacuum, completely devoid of any noise, is somewhat a misconception. And though sound as humans hear it can't travel in space, there are several way in which we can extract the anthems of the cosmos. And in this video, we'll be doing just that, as we embark on a journey of Sound in Space.

SOUNDTRACK:

- Uranus Sounds: https://youtu.be/yXfJG1gs3b4?si=zbgOABUBuLOtufgO

- The Neptune Sounds: https://youtu.be/rwnpXll_A_E?si=sxZqKfccykjGixWZ

- Jupiter Sounds (So Strange): https://youtu.be/e3fqE01YYWs?si=hIYAcZF1U7mRMMpY

- Saturn: https://youtu.be/eVfkW9oxhIk?si=1w8tIgRNir342LvF

- "Carpe Diem" - CO.AG Music: https://youtu.be/iuMBV3j55-I?si=gGwaRE5Hsgxm40rU

- "Scrooge Ice Mix" - CO.AG Music: https://youtu.be/C9jFL_6raL8?si=kKR-3t6i46kGJF7d

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

- "Does it Exist or Do I Have to Create It" - Chris Zabriskie (Creative Commons Licence 4.0)

Link: https://chriszabriskie.bandcamp.com/track/does-it-exist-or-do-i-have-to-create-it

Artist: https://www.chriszabriskie.com/

CHAPTERS:

00:00: A Journey of Sound

01:17: Sound in Science

06:14: Whistler-Mode Waves

08:51: Sound of the Sun

11:25: Sounds from Terrestrial Planets

14:38: Sounds from Giant Worlds

17:48: Voyager Sounds from Deep Space

19:36: Pulsars

21:54: Gravity Waves

25:06: Sonifications of Visual Data

31:52: The True "Sound" of the Universe

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)

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

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

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

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.agmusic
CHAPTERS:

00:00: Artemis II

02:15: Road to the Moon Landing

07:09: The Apollo Program

13:31: The New Space Race

18:00: The Artemis Program

21:32: Artemis III

23:22: Artemis IV: The Next Moon Landing

26:04: Moon to Mars