NASA's Engines and Possible Speed of Light Propulsion?

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NASA's Engines and Possible Speed of Light Propulsion? 4.5
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New propulsion technology is explained and the most advanced the ion engine, which in theory can propel a spacecraft nearing the speed of light.

💬 Comments on the video
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There is nothing about the speed of light in the entire video omg!!!! Extremely mis titled please rename!!!!

Author — Yunfei Chen

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“Space is abundant”

Really? And all this time I was under the impression there wasn’t much of it at all.

A sugar cube sized ion drive? Just how far into the future are we speaking about in this documentary??

Author — Mark Greenhowe

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The speed of light part went by so fast, I never saw it.

Author — immrnoidall

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this is just a rehash of already existing concepts. nothing new, no lightspeed info. just a teaser to get you to click on it so they can get a check

Author — killljoy999

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"Other government agencies are using them for various purposes." That's not ominously vague at all.

Author — Billy Wardlaw

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Should be called, " NASA's Fastest IMAGINARY Light Speed Propulsion Technology, "

Author — Kevin Smith

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Throwing the word 'lightspeed' in there made the hole thing lose credibility.

Author — wanshei

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So you can say it’s a

*T* win
*I* on
*E* ngine

or a *TIE* space craft

Author — UndeadLou

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Speeds comparable to one fourth to three fourths the speed of sound will require a nuclear power plant for the main ION thrusters.

Author — David Crittenden

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Ion engines or solar electric has been around since 1959. NASA used one in 1998 on the Deep Space 1 satellite. The 'Dawn' spacecraft has been using ion propulsion too and is now at the end of its mission residing in high orbit around Ceres

Author — ProjectsBlack

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Great! I can't wait to start using this to skip every gridlock that I've been facing until now whenever I go to work.

Author — Azeckwazion

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Did you hear that at 16:00 "its considered the only "man made" huh. Great watch out here comes the ALIENS.🤣

Author — not effected

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Ion engines can't reach even close to light speed. Even with the increased efficiency, it's still way too low to keep your reaction mass from dragging you down.

Author — iliketrains0pwned

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Don't worry everyone we will all be dead of old age before NASA sends anyone anywhere.

Author — Alpha Prime

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Anyone come here just to look at the comment section? I mostly came here for the flat earthers.

Author — Totally an Anime

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Amazing! but how fast could you go theoretically boosting the thrusts for thousands of hours?

Author — Beast God

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ITS Clear, we need Gene Roddenberry in charge of deep space programmes...

Author — Bee JayEx

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NASA,
Pay attention please!
I have a theory ho to travel
on A SPEED OF LIGHT!

Author — Dante Evardone

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Forget solar.There are many regions in space that solar wont work.Can you say Thorium reactor.

Author — Russell Mattingly

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What ever happened to the "Interstellar Ramjet"? Totally cool if there's enough hydrogen in interstellar space and we develop fusion technology. Totally cool!

Author — Roxanna Mason