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Humanity may not need a warp drive to go interstellar
Astronomy Magazine ^ | August 10, 2016 | David Warmflash

Posted on 08/14/2016 4:49:11 PM PDT by 2ndDivisionVet

Here are a few ways that humanity may be able to leave the cradle of Earth.

The field equations of Einstein’s General Relativity theory say that faster-than-light (FTL) travel is possible, so a handful of researchers are working to see whether a Star Trek-style warp drive, or perhaps a kind of artificial wormhole, could be created through our technology.

But even if shown feasible tomorrow, it’s possible that designs for an FTL system could be as far ahead of a functional starship as Leonardo da Vinci’s 16th century drawings of flying machines were ahead of the Wright Flyer of 1903. But this need not be a showstopper against human interstellar flight in the next century or two. Short of FTL travel, there are technologies in the works that could enable human expeditions to planets orbiting some of the nearest stars.

Picking the Target

Certainly, feasibility of such missions will depend on geopolitical-economic factors. But it also will depend on the distance to nearest Earth-like exoplanet. Located roughly 4.37 light years away, Alpha Centauri is the Sun’s closest neighbor; thus science fiction, including Star Trek, has envisioned it as humanity’s first interstellar destination.

In 2012, a planet was identified orbiting closely around Alpha Centauri B, one of three stars comprising the Alpha Centauri system. Three years later, astronomers were unable to find that same planet, but if it exists it would be too hot for life anyway. What we really want to know is whether planets exist further out from the two main stars, or whether their much smaller, dimmer companion star, Proxima Centauri, located just 4.24 light years from Earth, has planets of its own.....

(Excerpt) Read more at astronomy.com ...


TOPICS: Astronomy; Science; Travel
KEYWORDS: spaceflight; starflight
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1 posted on 08/14/2016 4:49:11 PM PDT by 2ndDivisionVet
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To: 2ndDivisionVet
I initially misread Humanity as Hannity.

ha!

2 posted on 08/14/2016 4:52:21 PM PDT by hole_n_one
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To: 2ndDivisionVet

their much smaller, dimmer companion...

Planet Pelosi?


3 posted on 08/14/2016 4:53:37 PM PDT by dp0622 (The only thing an upper crust conservative hates more than a liberal is a middle class conservative)
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To: 2ndDivisionVet

4 posted on 08/14/2016 4:57:34 PM PDT by Bratch ("The only thing necessary for the triumph of evil is for good men to do nothing." - Edmund Burke)
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To: 2ndDivisionVet

I have a cat who demonstrates faster than light travel each dinner time.


5 posted on 08/14/2016 4:57:50 PM PDT by RoosterRedux
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To: hole_n_one

Glad I’m not the only one.


6 posted on 08/14/2016 5:00:07 PM PDT by Springman (Rest In Peace YaYa123, Bahbah, and Just Lori.)
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To: hole_n_one

Oh, The huge Hannity! ha ha


7 posted on 08/14/2016 5:01:33 PM PDT by ichabod1 (Make America Normal Again)
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To: dp0622

Good one.


8 posted on 08/14/2016 5:03:13 PM PDT by wastoute (Government cannot redistribute wealth. Government can only redistribute poverty.)
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To: 2ndDivisionVet

9 posted on 08/14/2016 5:05:47 PM PDT by Donglalinger
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To: 2ndDivisionVet
What we really want to know is whether planets exist further out from the two main stars, or whether their much smaller, dimmer companion star, Proxima Centauri, located just 4.24 light years from Earth, has planets of its own.....

Ask and you shall receive!

EARTH-LIKE PLANET AROUND PROXIMA CENTAURI DISCOVERED 8/13/2016

10 posted on 08/14/2016 5:07:10 PM PDT by TigersEye (~Our government lies and the media helps them.~)
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To: 2ndDivisionVet

11 posted on 08/14/2016 5:09:32 PM PDT by Snickering Hound
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To: 2ndDivisionVet

Imagine how embarrassing it would be to arrive at Alpha Centauri as the 25th generation capain of your Interstellar mission only to be greeted by your great great great great grandson. Who had left first centuries previously benefit of subsequent better technology.


12 posted on 08/14/2016 5:12:39 PM PDT by wastoute (Government cannot redistribute wealth. Government can only redistribute poverty.)
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To: 2ndDivisionVet

Side note: 50 years of Star Trek is on the History Channel right now.


13 posted on 08/14/2016 5:14:44 PM PDT by dhs12345
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"The Spice Must Flow!"


14 posted on 08/14/2016 5:25:03 PM PDT by shibumi (I am the Nexus One I want more life Muthah I ain't done *~)
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To: 2ndDivisionVet

Near space travel, it may be productive and lead to advances in science unforeseen otherwise. Human beings leaving the galaxy? It will not happen and is a waste of resources. First go to the moon in a manner that can be easily replicated, and is as safe as air travel relatively speaking.


15 posted on 08/14/2016 5:27:35 PM PDT by Glad2bnuts ( Screech and the Squawks, or Hillary and her band of fairy misfits)
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To: 2ndDivisionVet

It is not necessary to gave “tens of thousands” of travelers on a generation ship. Yes there must be a lot of people in a population to avoid the ill effects of in breeding but populations considerably smaller than tens of thousands have done so.

And even population of 1,500 or so could be refreshed genetically by implantation of frozen embryos if necessity so required.


16 posted on 08/14/2016 5:30:00 PM PDT by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: 2ndDivisionVet

Four light years away, they are just learning about Romney-Ryan and have lost all interest in coming to Earth.


17 posted on 08/14/2016 5:30:23 PM PDT by bigbob (The Hillary indictment will have to come from us.)
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To: BenLurkin

So sending a few hundred in-vitros aka “tanks” would be a good or bad idea?

Space Above And Beyond reference fwiw.


18 posted on 08/14/2016 5:51:18 PM PDT by wally_bert (I didn't get where I am today by selling ice cream tasting of bookends, pumice stone & West Germany)
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To: 2ndDivisionVet

Use your Interrositer for further interstellar travel instructions.


19 posted on 08/14/2016 6:01:01 PM PDT by Sasparilla (Hillary for Prison 2016)
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To: shibumi

OH god I just caught this version of Dune recently. I’m on the fence, totally.

The original Spacing Guild was so much more inspired. The whole David Lynch vision was simply... epic.

The later version seems to want to make Dune understandable on the first viewing. But it was more adherent to the book.

Anyway, Einstein’s notes do not account for “FTL movement” at all. It says it’s impossible.

Warp and wormholes give us “FTL travel”. I don’t think the article makes the distinction.

Anyway, I’m starting the Spacing Guild before Jeff Bezos does.


20 posted on 08/14/2016 6:01:26 PM PDT by Celerity
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