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509,065 Views • Nov 12, 2021 • Click to toggle off description
Before we discovered any exoplanets, it was generally assumed the Solar System was just a typical planetary system. More and more though, we are finding that the Solar System might not be so ordinary afterall. Join us today as we explore the question - is the Solar System unusual?
Written & presented by Prof David Kipping
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::References::
► He et al. (2020), "Architectures of Exoplanetary Systems. II: An Increase in Inner Planetary System Occurrence Toward Later Spectral Types for Kepler's FGK Dwarfs", AJ 161, 24: arxiv.org/abs/2003.04348
► Poleski et al. (2021), "Wide-orbit exoplanets are common. Analysis of nearly 20 years of OGLE microlensing survey data", Acta Astronautica 71, 1: arxiv.org/abs/2104.02079
► Foreman-Mackey et al. (2014), "Exoplanet population inference and the abundance of Earth analogs from noisy, incomplete catalogs", ApJ 795, 12: arxiv.org/abs/1406.3020
► Wittenmyer et al. (2016), "The Anglo-Australian Planet Search XXIV: The Frequency of Jupiter Analogs", ApJ 819, 28: arxiv.org/abs/1601.05465
► Bryan et al. (2019), "An Excess of Jupiter Analogs in Super-Earth Systems", AJ 157, 18: arxiv.org/abs/1806.08799
::Music::
Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (creativecommons.org/licenses/by/4.0/), or with permission from the artist
► Joachim Heinrich - Stjarna
► Falls - Ripley
► Falls - Life in Binary
► Chris Zabriskie - The Sun is Scheduled to Come Out Tomorrow
► Joachim Heinrich - Cassiopeia
► Painted Deserts - Shimmer
► Chris Zabriskie - Cylinder Two
► Joachim Heinrich - Stratosphere
► Indive - Fusion
::Chapters::
00:00 Mediocrity
07:54 Typical Systems
11:27 Sponsorship
12:54 Solar System Analogs
20:00 Final Thoughts
22:01 Outro and Credits
#SolarSystem #AreWeUnusual #CoolWorlds
Views : 509,065
Genre: Science & Technology
Date of upload: Nov 12, 2021 ^^
Rating : 4.905 (451/18,514 LTDR)
RYD date created : 2022-04-09T19:57:53.078598Z
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YouTube Comments - 1,403 Comments
Top Comments of this video!! :3
Most of the stars out there are red dwarves, so being around a star like the Sun is already a big abnormality. Being on an outer branch of a spiral galaxy is another big abnormality - most stars would be in the galactic core.
948 |
Really appreciate the work you do on this channel Professor Kipping. You're undoubtedly inspiring a new generation of students to look up at the stars in wonder and amazement. Keep it up!
854 |
The addition of the forest background is soooo cool! I love to see that there's a large amount of effort being put into these videos
319 |
I think we're pretty unusual in the sense that we have access to such amazing content like this
318 |
I love the idea of squinting at a blindingly dim light in a roaring and infinite dark, waiting for it to blink. And when it does, celebrating with fever dream maths and statistics
8 |
Aside from being in the Goldilocks zone, circular orbits, and having a gas giant shield I suspect a large stabilizing moon is a prerequisite for complex life. Looking at our limited sample size I imagine such moons are rare. The odds of a collision or capture being at just the right angle seems improbable.
317 |
"...the only way for the universe to know itself". Such a cool line. Reminds me of the most profound graffiti I ever read in a truck stop. "Man is a manifestation of the universe contemplating itself". Thank you for such great content.
163 |
It seems like many scientists are afraid of the weak anthropic principle, maybe because the name unfortunately could imply humanity in particular. But stripped down to the basics, it simply says that intelligent life is where it is, because it can't be anywhere else. And that is regardless of the odds, which thus precludes the use of the mediocrity principle in the discussion. I like that this video does not shy away from that, and in fact challenges us to consider it as a more realistic starting point.
101 |
Very fascinating. I'm glad you mentioned our moon. I read, long ago, that our large moon helps stabilize the Earth's axis. And that relative stability is what makes complex life forms possible by having a slower change to climate, which is needed for lifeforms to adapt and flourish.
In the same place, I read that Jupiter intercepts things from the outer system which would likely bombard us. Same with the moon.
102 |
This man has the best voice on YouTube!!!
96 |
I'd say the earth - moon relationship is way more special than the solar system.
33 |
20:00 even "sun-like stars" = only 10% (according to Wikipedia "Solar analog"-page).
So 10 sunlike stars with 10% of those having Jupiter-sized (1% of all stars); only 25% have a Jupiter-like orbit (so 0.25%); with systems with a Jupiter but without a super-Earth/sub-Neptune being the left over of 1.2+/-0.5 (most favourable option is 70%), this results in a star system "like ours" (in terms of just looking at the Jupiter part (wayy too opimistic, I guess) is only 0.175%.
I guess we should be happy that there are a lot of stars.
12 |
The greatest thoughts and discoveries of the Universe to ever unfold, presented to us in storyform through pristine narration, always. I just wish you would post more often.
47 |
Omg I love those closing arguments. Makes me feel unique, at least once.
10 |
Whenever I think of alien life, I don't question wether it exists, but rather how far away it does...
144 |
Thank you, Professor. This video was.. So enlightening and just mind-stimulatingly wonderful.
34 |
Nice Carl Sagan quote there 😊 My absolute favorite quote.
"We are made of starstuff. We are a way for the cosmos to know itself."
3 |
Happy to see you’ve posted a new video on the topic! Thanks, Professor! Excited to watch it.
7 |
“Somewhere in me is a curiosity sensor. I want to know what's over the next hill. You know, people can live longer without food than without information. Without information, you'd go crazy.” i love this channel 👾
16 |
@CoolWorldsLab
2 years ago
Thanks for watching everyone and thanks to our sponsor, CuriosityStream. You can sign up for CuriosityStream here: curiositystream.com/CoolWorlds. Let us us know down what your thoughts on this video! Are there any other aspects about the Solar System you think could be rare or common?
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