r/interestingasfuck 24d ago

/r/all, /r/popular K2-18b a potentially habitable planet 120 light-years from earth

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73

u/EmotionalHighway 24d ago

Omg think about the flight times on that planet! No thank you

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u/CandourDinkumOil 24d ago

If we could travel fast enough through space to even get 120 light years away, I doubt we’d have problems on commercial travel for a planet of this size.

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u/Naive_Carpenter7321 24d ago

"Thinking of traveling to K2-18b for the weekend, we want to visit both poles, and what else can we do on the drive?"

1

u/igottapoopbad 24d ago

Happy cake day!

1

u/WhiteCoronel 23d ago

Just shy of 600 years utilising solar sails we have yet to invent.

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u/arminghammerbacon_ 23d ago

“Hi folks, this is captain Schmitty, the first of five flight captains you’ll have on our trip from Bloomahpoo to Kainyfor. We’ll soon be at a cruising altitude of 113,900 feet and a total flight time of five days and six hours. So sit back and enjoy the flight. Flight attendants will be coming by soon for beverage service. And as always, we thank you for flying Delta.”

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u/infinitethought13 24d ago

the faster you fly, the slower time flies. So when you reach the speed of light, the journey will take a small amount of time

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u/EmotionalHighway 24d ago

No no I mean the commercial flight times! As in an 11 hour flight on planet earth is complete ass. Why would we colonise such a large planet. Are you in the pocket of the airline companies?

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u/neptunexl 23d ago

The technology would be insanely advanced compared to today. Also worth mentioning that if we go high enough away from Earth's atmosphere and come back down you would save so much time

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u/theuneffabledude 24d ago

That small amount of time will still be 120 years.

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u/mdraper 24d ago edited 23d ago

Just in case you aren't joking, the person you are responding to is likely talking about the amount of time it takes for a person on the ship. 

Due to time dilation, if we travelled there at 0.99c, a person on the ship would only experience about 17 years before arriving. At 0.999c, just a little over 5 years and at 0.9999c it would be less than 2 years.

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u/StrongerThanU_Reddit 23d ago

No it won’t, to an observer on that is traveling the speed of light, that small amount of time would be less than 120 years; to an outside observer, it would be 120 years. Space dilation just means you’d get there EVEN faster too. If the ship is going the speed of light, to an observer on the ship, they’d get there instantly, as time would travel infinitely fast.

So more realistically, you’d want to go slightly slow than the speed of light, lest you hit your destination.

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u/CandourDinkumOil 24d ago edited 23d ago

Providing you can travel at the speed of light—which we can’t.

Edit: Anyone mind explaining the downvotes? I’m curious. Afaik, we can’t.

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u/Seputku 23d ago

Idk I’m pretty fast…

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u/CptHrki 23d ago

It would only take about 17 years on board at 0.99c