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  • The Indian Space Research Organizationor ISROannounced plans to launch a rover to

  • the moon sometime in July of 2019.

  • Not only will this be India’s first attempt to land on our big gray satellite, the mission

  • is going where no one has gone before: the moon’s south pole.

  • They won’t be alone for long though, because Jeff Bezos’s space company Blue Origin is

  • planning a trip to the lunar south pole as well.

  • But why the sudden interest, what could be down there that’s worth seeing?

  • Turns out, quite a bit, and it could be the key to a human colony in space.

  • Up to this point, only three other nations have landed probes on the moon: the former

  • Soviet Union, the United States, and China in that order.

  • An Israeli organization made an attempt in April of 2019, but their Beresheet lander’s

  • rocket failed in the final moments before touchdown, adding another tiny crater to the

  • moon’s face and leaving 4th place in the lunar rover race up for grabs.

  • So India’s ISRO is next to take their shot, launching their lander Vikram with the rover

  • Pragyan tucked away inside on a mission theyre calling Chandrayaan-2.

  • Yes, while this is their first attempt at landing on the moon, it’s not their first

  • mission to it.

  • In October of 2008, ISRO’s Chandrayaan-1 mission sent an orbiter to the moon.

  • It operated for 312 days, while a NASA instrument on board studied the moon’s surface.

  • In 2018, it was announced that those observations revealed what appears to be water ice on the

  • surface of the moon’s polar regions.

  • That’s what’s kicked off this race to the poles.

  • Now don’t go picturing massive ice sheets like what the Earth hasfor now anyway.

  • The moon’s ice is sparse and probably mixed in with the regolith.

  • You may be wondering how ice could exist on the moon at all.

  • Truth be told, were not sure how it got there.

  • It could be from early volcanism or the ice could have been brought there by impactors.

  • But we know how it stays there.

  • At the poles, because the sun is edge on to the moon, the insides of some craters are

  • in permanent darkness.

  • And inside these craters, it cold.

  • The temperature never rises above -156 Celsius.

  • Since it’s forever dark down there, the ice doesn’t get the chance to evaporate,

  • and estimates predict there could be anywhere from 10 thousand to 100 million tons of ice

  • at the south pole.

  • That’s great news for us, because, and I don’t know if youve heard, but humans

  • need water to live.

  • So if we could extract it from the moon instead of bringing it with us from Earth, that could

  • save a lot of rocket fuel.

  • Speaking of rocket fuel, it just so happens that it’s made of Hydrogen and Oxygen.

  • Guess what has a lot of hydrogen and oxygen in it?

  • I really hope you said water or I’m failing at my job.

  • So given the enormous benefits of water ice, it’s starting to look like a lunar colony

  • at one of the poles would be ideal.

  • Well, except for the cold, and the fact that permanent shadows aren’t conducive to solar

  • power.

  • But that’s where the polesunique geometry with the sun comes into play again.

  • The same way some craters have permanent shadow, some mounds, crests, and crater rims at the

  • poles see near-constant daylight, some for more than 200 consecutive Earth days.

  • And some of these sunny spots are right next to craters that could contain ice.

  • One such place is the Shackleton Crater, and that’s Blue Origin’s targeted landing

  • spot.

  • Even if ISRO beats Blue Origin to the punch, Bezos’s company is still planning serious

  • polar exploration; theyve unveiled a mock up of a lander capable of carrying four rovers

  • or an ascent stage that could lift human astronauts back off the surface of the moon.

  • So ISRO’s Chandrayaan-2 mission could be more than just a feather in the cap of India’s

  • space agency, itll be our first chance to get down in the regolith and see just how

  • abundant the ice is.

  • If the mission fails however like Beresheet did, Blue Origin could wind up being first

  • to the south pole, as well as the first private company to land on the moon.

  • No matter who gets there first confirming abundant ice at the south pole could be a

  • huge milestone in human history.

  • If it could sustain a lunar colony and produce rocket fuel, then the moon’s south pole

  • could be the first stop on a journey to Mars and beyond.

  • The Vikram lander is tentatively set to touchdown September 6th, 2019, and we will be watching

  • it very closely indeed.

  • Thanks for watching be sure to subscribe because weve got tons of great videos, like this

  • one asking how close are we to a lunar colony?

  • If we find enough ice at the south pole, would you be willing to live on the moon?

  • Let us know why or why not in the comments, and I’ll see you next time on Seeker.

The Indian Space Research Organizationor ISROannounced plans to launch a rover to

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奔向月球南極的競賽已經開始,但誰會先到達那裡? (The Race to the Moon’s South Pole Is On, But Who Will Get There First?)

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    林宜悉 發佈於 2021 年 01 月 14 日
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