Lost Worlds | Rogue Planets Documentary for Sleep & Relaxation

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.

Glad to have finished this one. It is a revamp of my very old video "The Loneliest Planet" which has been sat in the drafts since early 2023, back when I was still a LEMMiNO tribute act. So this video is dedicated to him, and also to Dr. Becky in light of her recent health struggles???? Thanks for watching and see you soon!

Join my Discord Server: https://discord.com/invite/sea
Merchandise: https://the-sea-store.creator-spring.com

Content Disclaimer:
All the content in this video was researched, written up, narrated and then put together by me (Sam). I do this as a full time job because I enjoy it. I do not use AI for any part of my creative process, and my voice is my personal property and not authorised to be replicated anywhere else. I do sometimes use AI-generated stock footage, but this is infrequent, sometimes unintentional, and usually when I can’t use anything else. Thank you for understanding.

You can support the channel on Patreon: https://www.patreon.com/sea_media
Patrons get early access to new videos and sneak peeks, as well as ad-free access to existing episodes!

Alternatively, you can become a channel member through YouTube to receive similar perks: https://youtube.com/seaMedia/join

FOOTAGE:
Most of the CGI in this video was made using Space Engine Pro, a virtual universe simulator available on Steam. Get SpaceEngine on Steam here: https://store.steampowered.com/app/314650/SpaceEngine/ or visit their website at http://spaceengine.org/

Other graphic sequences, including images and videos, were downloaded from Storyblocks Media: https://www.storyblocks.com

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

SOURCES OF INFORMATION:

"How Do Planets Go Rogue?" Fraser Cain, Universe Today (2015) https://www.universetoday.com/articles/how-do-planets-go-rogue

"Billions of Undetected 'Rogue Planets' Could be Tearing Wildly Through Our Galaxy", Michelle Starr, Science Alert (2019): https://www.sciencealert.com/there-could-be-billions-of-loose-planets-roaming-the-milky-way

"Runaway Rogue Planets are the Universe's Fastest Objects" NDTV.com (2012): https://www.ndtv.com/world-news/runaway-planets-are-universes-fastest-objects-473085

JuMBOs: Pearson S.G., McCaughrean M.J., "Jupiter-Mass Binary Objects in the Trapezium Cluster" (2023) https://arxiv.org/abs/2310.01231

90377 Sedna, Britannica Article: https://www.britannica.com/place/Sedna

Trujillo, C.A., Sheppard, S.S, "A Sedna-like Body with a Perihelion of 80 Astronomical Units" (2014): https://ui.adsabs.harvard.edu/abs/2014Natur.507..471T/abstract

Batygin, K., Brown, M.E., "Evidence For a Distant Giant Planet in the Solar System" (2016): https://iopscience.iop.org/article/10.3847/0004-6256/151/2/22/pdf

BBC Sky at Night Magazine "Is Planet Nine Tilting Our Solar System?" (2019) (https://www.skyatnightmagazine.com/news/is-planet-nine-tilting-our-solar-system)

Mike Brown's Caltech Page: https://mikebrown.caltech.edu
Chad Trujillo's Northern Arizona University Page: https://directory.nau.edu/person/cat382

Phan, T.L. et al. "A Search for Planet Nine with IRAS and AKARI Data" (2025): https://arxiv.org/abs/2504.17288

CHAPTERS:
0:00 In the Space Between Stars…
2:00 Rogue Planets
7:19 Failed Stars
9:26 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?

Rogue Planets, Interstellar Space, Intergalactic Space, Ejected Planet, Failed Star, Brown Dwarf, Sub Brown Dwarf, James Webb Telescope, JWST, JuMBOs, Jupiter Mass Binary Objects
Sedna, 2012 VP 113, Kuiper Belt, TNOs, Extreme Trans-Neptunian Objects, Perihelion, Aphelion
Mike Brown, Chad Trujillo, Scott Sheppard, Caltech, Palomar Observatory
Super Earth, Ice Giant, Planet 9, Ninth Planet, Lost Planet, Solar System, P9, Planet X
Infrared, Survey Telescope, WISE, NEOWISE, PAN-STARRS, Search for Planet 9