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One day humanity might journey to new worlds and settle them, or discover life already on them, but first we’ll have to find those exoplanets under aliens suns.
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Credits:
Surveying for Habitable Interstellar Star Systems
Science & Futurism with Isaac Arthur
Episode 343, May 19, 2022
Written, Produced & Narrated by Isaac Arthur
Editors:
Andrew Nelson
Curt Hartung
David McFarlane
Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier
Graphics:
Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana
Sergio Botero https://www.artstation.com/sboterod?fref=gc
Udo Schroeter
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
source
Do one about alien swarms
Why do you say ME thane? You British now?
Shooting rods at a potential habitable planet is a terrible idea for more then one reason.
1 If a collany ship is close behind then you could potentially stir up toxic or radioactive material contaminating the environment.
2 . If it is already supporting a ecosystem it could damage that ecosystem greatly
3. If inhabited by an intelligent civilization we could cause a technology boom on the world because of the confusion caused. Or worse yet an advanced civilization we could suddenly be flying at a now angered group of advanced people who could potentially destroy our ship on the way there.
i need subtitles on to watch the video…
We could theoretically get a megapixel image of a nearby exoplanet using the Sun's gravitational lensing, if we sent a telescope out to 500 AU. There's a mission being studied for this.
Meta materials are the future/salvation of physical media and telecommunication.
Don't we risk causing a mass extinction if we start dropping gigaton bombs on unexplored planets? I'd also hate that to get a visit from Gort 🙂
DOUBTFUL….. personally, i really doubt we'll do any real terraforming beyond maybe an attempt on mars, if even that. the cost of resources to terraform a single planet would equal countless O'Neil cylinders. and with O'neil cylinders being mobile. ALL star systems become habitable. it wouldn't make sense for mining resources. not when we already know we can mine them much easier from asteroids. and sure, there could be a planet that contains some resource we really need. but it would still only require us landing a mining operation to process that ore and leave again. there is just no reason to think any intelligent civilization goes in any other direction than O'neil cylinders.
Paraphrasing at about 29 minutes:
"Send a 100 kg rod at half the speed of light to impact the planet, with the energy of a million Hiroshima bombs. That will kick up enough debris to determine crustal composition…"
And if there are any resident lifeforms there, it should also allow them to determine that they are under attack by hostile aliens. "We come in peace. We leave you in pieces."
Tai, Marve, Mig, Lex, Ray…..?
Leaving a comment for the algorithm
Leaving a comment for the algorithm
I may have said it before, but if/when we finally learn how to colonize the Earth-Sol 4th and 5th LaGrange points, there won't be much of the universe at all we can't colonize. And we won't even need planets.
28:40 imagine we did that to a planet not knowing it had an intelligent civilization on it and it was more powerful than we were or even if it wasn't that would be pretty fucked up.
thee MAJESTY QUEEN ith ELIZABETH is not afraid of me so why r u guys
I would imagine that any creatures that were living on a planet might have quite a huge problem with a probe's blasting craters on that planet to analyze the resultant debris. In fact, if they were sentient, they might feel impelled to hunt down and destroy the aliens that had launched an unprovoked attack on their world.
remember that faster than light travel is impossible, so half these videos are misleading people in to thinking we can do these things
there are thousands of alien civilizations out there and we will never have any contact with them,
but we dont like that so we 'believe' and ignore science
If you send people to space for centuries or thousands of years of travel, travel becomes normal life for most of them. That, probably, even if they are not aging and will be alive in hundreds of stops. The dream destination will not remain immensely important for very long. Because the constant in human condition is that we adapt to life as it is. Give enough time and you are likely to see being leaved on a paradise planet as a punishment almost as severe as death penalty, for those born and raised inside space vessels.
I very much enjoyed the brief explanations on how we are able to detect characteristics of planets, like through the emmissions from different molecules.
Firing the tungsten rod at a planet could be a good way to accidentally start an interstellar war should the world turn out to be inhabited by advanced aliens (the planet need not have a biosphere that we might spot from further out, could be an airless mining outpost or similar). The aliens could not unreasonably assume it to be a deliberately hostile act. Bad / risky plan!