Interstellar Travel: Approaching Light Speed


Is interstellar travel doomed to remain in the realm of science fiction with faster than light travel and infinite improbability drives? Never mind warp speed, is light speed even possible? Technically no Light is massless and travels a little over 1 billion km/h Since spacecraft are not massless you need energy to accelerate as you keep gaining speed, you’ll need increasingly larger amounts of fuel Eventually, even tiny gains in acceleration require huge amounts of energy Getting to exactly one hundred percent light speed would require an infinite amount of energy which is why it’s an impossible goal Before we look at how close we can get to the speed of light et’s consider what we’ve accomplished so far When it comes to space travel, everything starts with a rocket still the best way we know of to literally get our feet off the ground ockets give spacecraft that initial massive boost to escape Earth’s gravity t’s the first step in getting people to the moon sending probes to the planets our sun and even the edge of our solar system pollo 10, the dress rehearsal for Apollo 11 never landed on the moon, but at reentry it did set the world record for the fastest manned spacecraft at just under 40,000 km/h in order to get all the way to the moon, it needed the help of Saturn V still the most powerful rocket ever launched The New Horizons probe, hitching a ride on the Atlas V holds the record for fastest launch velocity at over 58,536 km/h t was also the first spacecraft to reach Pluto in 2015 sending back the first detailed images ever taken of Pluto Launched in 1977, Voyager 1’s mission was the exploration of Jupiter and Saturn and once complete to leave the solar system entirely It couldn’t do it with rocket power alone so it used gravity assists at Jupiter to slingshot to Saturn and again at Saturn to fling itself out to the edge of the solar system Voyager 1 reached a top speed of 62,000 km/h but it still took over 30 years to reach interstellar space in 2012 In 1976, the Helios-2 probe set off to study the sun and the interplanetary medium To do so they were put in highly elliptical orbits with the Sun at one end and all the way out to the Earth’s orbit at the other Each time it approached the Sun the massive gravitational force sped it up to a record setting speed of 253,000 km/h the fastest any spacecraft has ever travelled Solar Probe Plus will study the corona and outer atmosphere of the sun ith an expected launch in 2018 Over the course of seven years multiple gravity assists will be used at Venus to bring it into an orbit around 7 times closer to the sun than Helios With that close of an orbit it will crush the Helios record with a top speed of just under 725,000 km/h Even still, that’s just a meager .07% the speed of light and would take over 6,000 years to travel 4 and a quarter light years to get to Proxima Centauri the closest star to our own In 2016 a planet, Proxima b, was discovered around the star It’s probably rocky like the Earth and in the right orbit to be potentially warm enough for liquid water on the surface if it has any This makes it an excellent target for the first interstellar spacecraft Staying in the realm of current or near future technology only can we improve on that speed? Ion propulsion is currently employed in some satellites but most notably, the Dawn spacecraft which studied the asteroid Vesta and the dwarf planet Ceres Inside the thruster, electrons bombard neutrally charged atoms ausing them to lose electrons and become positively charged ions Thrust is produced as they are shot out in an ion beam The resulting thrust is miniscule but since it’s fuel supply can last for years, unlike a rocket that tiny amount of thrust keeps compounding on itself and in time, it can potentially reach speeds of up to 324,000 km/h, although no spacecraft currently has While not the fastest it’s a practical method to study multiple celestial bodies in one mission an exciting potential for solar system exploration In the 1970s, the British Interplanetary Society conducted a study Project Daedalus for an unmanned fusion propelled interstellar spacecraft With help from the Tau Zero foundation in 2009 hey initiated Project Icarus to update the concept with the Ghost team’s design winning the internal competition in 2013 For propulsion, Ghost uses Inertial Confinement Fusion Small fuel pellets are shot into a fusion chamber Lasers bombard each pellet from all sides, compressing it then one final laser pulse shoots into the core, igniting the fusion process The resulting plasma is expelled from the ship, producing thrust The older Daedalus design would have reached a remarkable 12% light speed Ghost can only get to 2.33% light speed reaching Proxima Centauri in around 186 years While much slower, Ghost allows for deceleration at the star for scientific study using it’s own fusion engine and a magnetic sail 400 km in diameter Ghost also uses a more practically sourced fuel Deuterium and Tritium while Daedalus used the more efficient combination of Deuterium and Helium-3 Unfortunately, Helium-3 is too rare and inaccessible on Earth You would have to mine a gas giant like Jupiter or possibly the moon to get enough fuel Though it’s the fusion process itself that may be the biggest challenge We have yet to achieve a sustained fusion reaction in the lab Until we figure that out, these ships won’t leave the ground Weighing in at 1.4 million tonnes and over a kilometer long Ghost couldn’t launch from Earth it would have to be assembled in parts This is no small task as The International Space Station, the largest spacecraft ever built is 450 tonnes and 109 meters long, peanuts compared to Ghost Since almost all of the mass of a fusion spacecraft is fuel imagine not having to carry any with you Enter the solar sail IKAROS is a small solar sail spacecraft built by the Japanese space program JAXA Launched in 2010, it was the first successful demonstration of solar sail propulsion Similar to ion propulsion sunlight results in only a small amount of thrust but it keeps compounding on itself and only stops when the spacecraft is too far from the sun The total thrust is determined by the surface area of the sail versus the mass of the spacecraft With a big sail you can catch more light With less mass, the light can push you faster There’s also more solar energy imparted on the spacecraft the closer you can get to the sun As long as you don’t burn up in the process Unfortunately this may not be good enough to get to another star within a lifetime It would take a 1 kg spacecraft with a 1km x 1km sail travelling extremely close to the sun about 100 years to reach Proxima Centauri But we may be able to improve on this Breakthrough Starshot is another proof-of concept project to design an unmanned laser propelled spacecraft. A mothership containing thousands of nanocrafts will be launched into orbit This allows for redundancy in case of failure and a variety of payload options These tiny, gram-scale nanocraft have a sail only 4 meters to a side and just a few hundred atoms thick The Light Beamer is a ground based array of lasers that combine together in a single beam to propel each nanocraft to 20% light speed within minutes At that speed, they could reach Proxima Centauri in as little as 20 years While just a flyby mission they could get close enough to Proxima b to take pictures with enough detail to see continents and oceans if it has any While the team doesn’t see any deal breakers that could stop the project that’s not to say there won’t be any challenges especially building the light beamer At 100 gigawatts, the array would be 100 times more powerful than a nuclear power plant It will also need to contend with the scattering effects of the atmosphere as an orbital laser of this scale is too expensive Speaking of which, the projected cost is nearly 10 billion dollars about half of NASA’s 2016 budget But it does start to look like a bargain compared to the $100 billion dollar cost of the International Space Station Breakthrough Starshot may represent not only the most practical interstellar spacecraft but at 20% light speed it would be the fastest

100 Comments

  1. Jimiticus said:

    As a follow up, you can watch my latest video on how the Sun can be used as a gravitational lens to get a high resolution image of an exoplanet for the first time. This would be even better resolution than breakthrough star shot is capable of. https://www.youtube.com/watch?v=Hjaj-Ig9jBs

    August 8, 2017
    Reply
  2. Bodragon said:

    (8:15) – "…nucular" ?
    Oh my daze…
    >

    November 2, 2019
    Reply
  3. Tri C. Do said:

    If you sound American English then use Mile Per Hour.

    November 3, 2019
    Reply
  4. David s said:

    should have mentioned time dilation. How much of an effect would it have at 20% light speed?

    November 3, 2019
    Reply
  5. Olaf Kliemt said:

    try tesla scalar waves

    November 3, 2019
    Reply
  6. Greg G said:

    Your space ship looks like a meth pipe.

    November 3, 2019
    Reply
  7. PsiCommando said:

    I like it how for Europeans Saturn-5 is 110m tall, and for Americans it's 2and1/2 Statues of Liberty

    November 3, 2019
    Reply
  8. Brooke B said:

    The faster you go the longer it takes to slow down. Itll be 1000+ year journey with any near future technologies.

    November 3, 2019
    Reply
  9. Jon Bain said:

    rather search for the 'Astrosling'

    November 3, 2019
    Reply
  10. Mr bUiLdz said:

    In space u need less power to travel not more

    November 3, 2019
    Reply
  11. foxy45 gauss said:

    the weapon I got from war robots is the 2:37

    November 4, 2019
    Reply
  12. Leonard Pearlman said:

    So… even IF (a big "if") you finally achieve the legendary speed o' light, is it not something like twenty thousand years to the Galactic Rim? Or Galactic Core? Maybe that's where all the cool people are! But does anyone think that's a long trip? Sort of exceeds our planning horizon I think, plus what if it takes a long time to accelerate and decelerate? I mean, your subjective trip time might approach zero, but I still think there might be serious disadvantages in such long trip times!

    November 4, 2019
    Reply
  13. Andy Z said:

    Even if one day we do achieve 20% speed of light what guarantee is there for debri-less interstellar space travel?

    November 4, 2019
    Reply
  14. Alex Povolotski said:

    You’re thinking three-dimensionally. You’re choosing the slowest possible travel methods when you can be at any point in space at any point of time, if you consider time is a thing at all.

    November 4, 2019
    Reply
  15. Stuart Tyler said:

    Technically there is no force acting against a spacecraft in space. No drag or anything. So it should not take more and more acceleration to go faster. Any acceleration greater than nothing will gain you speed. Bc if you let off the accelerator you would still be going the same speed forever.

    November 4, 2019
    Reply
  16. Sweet&SourPork said:

    Speed isn't as much a problem as shielding from said speed

    November 4, 2019
    Reply
  17. Barry White said:

    SPACE FARCE

    November 4, 2019
    Reply
  18. Zeke Smith said:

    He says light is mass-less. But gravity has been shown to bend light. That is a mystery science is still exploring.

    November 4, 2019
    Reply
  19. shawn stipe said:

    so to travel at the speed of light we must find a way to turn ourselves into light like transporter technology on star trek.?

    November 4, 2019
    Reply
  20. Aurel F said:

    That is nice ,but did you wonder ,the humans can resist this kind of speeds ?Our body is very fragile .The only way to travel is to build a emotional chip ,store your (self) in it ,and pass to mechanical body /imagine ,time is something biological ,if you are a machine ,you can stop your existence ,when you travel ,like a timer ,let s say 2 million years ,then wake up,for you ,the time never passed away ,because you didn t record the Time ,is like passing a second for you /here are variables like objects in the way ,the resistance of the
    metal(corosion),technological failures ,but in my opinnion ,this is more close to the truth .In fact the technology is closer day by to to build a AI -see the 7 nano chips today maded .Imagine in 200 years ?

    November 4, 2019
    Reply
  21. Sauga Verse said:

    Two things to keep in mind with interstellar space travel.
    First, no matter how fast you go, you also have to slow down once you arrive at your destination.
    Second, at very high speeds you run the risk of even small particles of dust destroying your spacecraft. So some sorta magnetic shield would have to be developed to deflect anything solid in the path of your spaceship.

    November 5, 2019
    Reply
  22. nucflashevent said:

    One of the more practical shortcuts *IF* a way can be found to achieve it would be FTL Communication. Now not to get anyone's hopes up, at the moment the Laws of Physics tell us that's just as impossible as FTL Travel. However, considering that there's a decent chance FTL Communication would be less labor intensive than FTL Travel, it could be used to remotely operate super-deep space probes. Where we send a probe to Alpha Centauri at whatever speed but if we can communicate with it instantaneously whatever its distance, then we can have humans on Earth virtually operating humanoid drones one the spacecraft…making repairs, reading instruments…both on the trip and after arrival in the Centauri system.

    November 5, 2019
    Reply
  23. Jay Jay said:

    So we can build a solar array that can produce 100 times the power of a nuclear power plant.. but we still have issues providing power to the planet in a sustainable and non polluting way

    November 5, 2019
    Reply
  24. Blitherer Masterman said:

    If reaching light speed makes your relative length infinite, maybe using negative index of refraction metamaterials to prevent the leakage of any photons will allow you to exceed it?

    November 5, 2019
    Reply
  25. Daniel Gadd said:

    It's not an impossible goal, or at the very least we do not know. The future can bring new technologies and understanding you fool

    November 5, 2019
    Reply
  26. Dee Dee said:

    Miles plz 🙄🙄🙄🙄

    November 5, 2019
    Reply
  27. Anastacio Castro said:

    best option is to make a moon base and start low gravity manufacturing to build large ships that are nuclear powered like u.s fleet carriers and made to colonize other planets and have resource extraction Technics

    November 5, 2019
    Reply
  28. Noora نورة said:

    is there a new updated video?

    November 5, 2019
    Reply
  29. Noora نورة said:

    I wonder why they should pay for space exploration? It should be free

    November 5, 2019
    Reply
  30. P Ciprian said:

    that planet is barren. No point going there as is. If we can build something to terraform Mars then we can talk about going further.

    November 5, 2019
    Reply
  31. NephilimFree said:

    Relativistic mass refers to mass of a body which change with the speed of the body as this speeds approaches close to speed of light, it increases with velocity and tends to infinity when the velocity approaches the speed of light.

    Relativistic mass = rest mass / squared root [one minus (velocity / speed of light) squared]

    The equation is:
    mr = m0 / sqrt (1 – v2 / c2 )

    Where:
    mr: relativistic mass
    m0: rest mass (invariant mass)
    v: velocity
    c: speed of light

    http://softschools.com/formulas/physics/relativistic_mass_formula/546/

    The relativistic mass m becomes infinite as the velocity of the body approaches the speed of light, so, even if large momentum and energy are arbitrarily supplied to a body, its velocity always remains less than c.

    https://www.britannica.com/science/relativistic-mass

    November 5, 2019
    Reply
  32. Mjstic Art said:

    interstellar travel with an ice pipe

    November 6, 2019
    Reply
  33. Bernard Alexander McNealy said:

    Hey Commander Data! Explain what a kilometer is — and why can't you just say miles per hour? Just because you use 'kilometer' in a sentence doesn't make you more authoritative. Because you don't want to be understood, as they say on Shark Tank, "For that reason, I'm out."

    November 6, 2019
    Reply
  34. Ryan Smith said:

    What about gravity

    November 6, 2019
    Reply
  35. Pandu Bintang said:

    just wait until 2063 when zefram cochrane fly the phoenix…

    November 6, 2019
    Reply
  36. murphynapoleon said:

    Kilometers per hour means nothing to us. What are you, a scientist, a European, or just a smart ass? Can the metrics, this is America!

    November 6, 2019
    Reply
  37. Joshua Henderson said:

    Light speed is just a pipe dream never gonna happen before Humanity destroys itself.

    Just a side not guys this website can get you some easy money on the side if your bored. It has Easy Surveys to get gift cards from Amazon and some other places give it a try it works
    https://share.tap2earn.co/JRhenderson77

    November 6, 2019
    Reply
  38. Σigma said:

    8:15
    https://www.youtube.com/watch?v=OoASZyihalc

    November 6, 2019
    Reply
  39. forever tipsy said:

    silly question maybe. but imagine you was in a plane that could travel as fast or at the speed of light. you used it to stay within the the earths atmosphere. you fly it around in circles around the planet.

    would the plane be in darkness? would light be able to reflect off it ?

    November 6, 2019
    Reply
  40. litltoosee said:

    What about the speed of thought?

    November 6, 2019
    Reply
  41. GlobalFortuneRecordingAcademy said:

    ITS NOT IMPOSSIBLE YA DUMB SACK OF ROCKS!!!

    November 6, 2019
    Reply
  42. jdL powell said:

    you say "it's an impossible goal"….I say "goodbye dumbass"

    November 6, 2019
    Reply
  43. Brother Alaric said:

    Light Speed is Too slow . . we have to go to . .Ludicrous Speed .. .

    November 6, 2019
    Reply
  44. rationalguy said:

    We don't need to travel faster than light, even if it were possible. Time stops at that speed.

    November 7, 2019
    Reply
  45. Louie K said:

    YOU WILL NEVER EVER GET OUTSIDE THE BOX IF YOU THINK INSIDE THE BOX !!! ???
    WRAP THE CRAFT IN AN ELECTROMAGNETIC BUBBLE & ANY THRUST FORWARD BY THEORY WOULD GET YOU FASTER
    THAN LIGHT SPEED !!! BECAUSE THE CRAFT IS OUTSIDE THE KNOWN SPACE !!! NAVITAGING IS ANOTHER MATTER !!!

    November 7, 2019
    Reply
  46. aegisgfx said:

    lol we aint going anywhere, most of america worships an illiterate rapist..

    November 7, 2019
    Reply
  47. Fabian Tarantino said:

    If light has no mass, how can it exert a force on a solar sail?

    November 8, 2019
    Reply
  48. Frank Ocasio said:

    There is one thing that can travel faster than light,That is light can travel faster than itself.

    November 8, 2019
    Reply
  49. Don Jones said:

    wasn't light sail debunked? something about inverse square law and how minute energy you would get once u pass the solar system?

    November 8, 2019
    Reply
  50. Cody SwiftCaster said:

    We already perfected all that. The thing is not many people know about it. Unless you al paid attention to the ancient ancestors of the human race they taught all this and then later people grew ignorant and then was lied to and brain washed to be below average and lied that no one is perfect lol

    November 8, 2019
    Reply
  51. Video Storage said:

    Bajillion Gigawatz !

    November 8, 2019
    Reply
  52. Junn Kit Wong said:

    if we unable to speed up, slow light to snail will still allow us to FTL

    November 8, 2019
    Reply
  53. Mlaggione said:

    i guess you didnt hear about miguel alcubierre theoretical warp drive…

    November 8, 2019
    Reply
  54. h3lix86 said:

    how about we quit pissing away trillions on the military industrial pissing contest and trying to find better ways to kill eachother and instead focus on advancing all of mankind? oh, sorry i forgot. that doesnt make companies, and politicians rich. my bad

    November 8, 2019
    Reply
  55. jjgreek1 said:

    great vid…but its NUCLEAR NOT NUKULAR

    November 8, 2019
    Reply
  56. Coyote Boy said:

    Velocity is a lesser problem than aceleration. Getting to those speeds turns living tissue into paste.

    November 8, 2019
    Reply
  57. Bubster 1969 said:

    kilometers make it sound so much faster but it's what, about 60% of that.

    November 8, 2019
    Reply
  58. Kay said:

    Is the Earth really flat or round?

    November 9, 2019
    Reply
  59. PIZZAPE said:

    So we have the speed to reach the closest sun in 20 years we need to be able to reduce people to atoms

    November 9, 2019
    Reply
  60. Tom Collier said:

    one day they will notice the answer is not a bigger hammer..

    November 9, 2019
    Reply
  61. Russell Jones said:

    maybe the problem is we are nothing but projections of light itself… And to travel past the speed of light is leaving ourselves behind. Humans need to start researching elsewhere for fast travel.

    November 9, 2019
    Reply
  62. Phatec said:

    I thought light speed was 300,000 km/h, or 186,000 miles/h? But this video says it is 1,000,000,000 km/h.

    November 9, 2019
    Reply
  63. П И said:

    How with the light speed someone will manage to escape from obsticals ?! With that speed hit from even few inch object will have deadly impact, but howwill escabe the big objects, you cant manouver like a plane or a car there. I think the only reasonable FAST route is trough wormhole, that should scientist do research ONLY as a fast long distance travel way

    November 9, 2019
    Reply
  64. shents aceve said:

    New Queuelar

    November 9, 2019
    Reply
  65. The Duke 71000 71000 said:

    The only thing limited to "Light Speed" is Light. Einstein's Theory of Light is still a Theory. It has never been promoted to the level of Scientific Law !!!!

    November 9, 2019
    Reply
  66. factinator33 said:

    Every time they come up with a craft to do the job it's going to be obsolete in no time

    November 9, 2019
    Reply
  67. factinator33 said:

    I think you should wait till the technology gets there, at least good enough so its SAFE and efficient!!!

    November 9, 2019
    Reply
  68. Nuke Gho said:

    pretty cool i saw those shape ships in gundam….i see they use the cuting edge

    November 9, 2019
    Reply
  69. kraigthorne said:

    8:04 This is why we need a Moonbase. On the Moon, there is more mineable uranium than on Earth and the nuclear waste from the power plants can be dumped on the surface because the radiation on the surface of the Moon is higher than nuclear waste. Also, there is NO atmospheric distortion on the Moon.

    November 9, 2019
    Reply
  70. Chris Carlson said:

    I wonder how the craft never hit one object travelling through space. For twenty years.-wow thats amazing. Good job whomever picked the path it took👍. Pizza tastes really good.

    November 10, 2019
    Reply
  71. Erick Kellermann said:

    Light is not massless, the definition of mass is anything that takes up space, photons take up space but very little space so it is almost massless.

    November 10, 2019
    Reply
  72. Butchy Harding said:

    we can't physically travel at light speed, but conscience can.

    November 10, 2019
    Reply
  73. Connection Lost said:

    8:14 And you just discredited your entire video. It's not Nook-you-lerr, it's "Nu-cle-ar" as in Nu-cle-us. There is no such thing as a Nookulus. This is such a basic topic in physics that its UNFORGIVABLE for you to say it incorrectly, let alone, while making a fucking science video. And I sure as hell hope you're not one of those asshats that defends saying it incorrectly, as if it's poe-tay-toe / poe-tah-toe. There is only one way to say it. George W Bush said it incorrectly, do you really want to be like him?

    November 10, 2019
    Reply
  74. Crazy Fox said:

    6:49 … 14 millimetres each side of the sail ?

    November 10, 2019
    Reply
  75. jeffrey luciana said:

    Just give the rocket ship viagra and when the ship "expels" its "protoplasm" it will be propelled at faster than light speed.

    November 10, 2019
    Reply
  76. David II said:

    Michio kaku, bogus propaganda machine, the only Space that exist is in between his ears.
    Lies lies lies.

    November 10, 2019
    Reply
  77. Steven Homan said:

    Sollàtb sailes for all the hype will remain an impractical solution to an intractaclable problem .what we need is a non chemical propulsion system such as fission or fusion.
    Yes I know all the blimp headed will carry on for a while, till even will shut up. Minimizing the journey times between planets will cut the exposure time to cosmic rays and reduce crews susceptibility to range

    November 10, 2019
    Reply
  78. Steven Homan said:

    Just a 20 year delay in getting the images, so 40 years before getting any data. Whose to say our foolish specie will still be around to interpret. Them?

    November 10, 2019
    Reply
  79. Andulvar said:

    It's not impossible to have infinite energy, A perpetual motion machine could generate it. It's the amount of energy you need in a localized area that's an issue. The other issue is that no life could survive getting to that speed.

    November 10, 2019
    Reply
  80. Starbase 51: Ship Testing Facility Europa said:

    Speed of light. Think speed of energy. It should give you a clue as to why physical objects can't travel faster than speed of energy or light.

    November 10, 2019
    Reply
  81. Ryukuss said:

    Great Scott 100 giga wats?

    November 10, 2019
    Reply
  82. RLomoterenge said:

    7:59. We gonna take pichers of interstellar objects

    November 10, 2019
    Reply
  83. Matthew Grotke said:

    Great video, very informative. Question about the 100 GW laser array. You said it's too expensive to build in space. I don't know if this is correct, but I heard that Breakthrough Starshot only required 1 GW laser if the laser was in space or on the moon, because it would not have to deal with the atmosphere. In the near future we could conceivably launch a nuclear Molten Salt Reactor into space probably with 1-2 rocket launches. An MSR could easily provide 1 GWe, and could be placed on the moon to alleviate concerns about nuclear materials in low earth orbit. MSRs can be built much smaller than conventional nuclear reactors because they do not require pressure vessels, containment buildings, or cooling towers; which are the heaviest and most expensive components of a traditional nuclear plant. There are obviously a lot of engineering work needed to be done before a MSR is practical, but China is expected to turn on a test prototype reactor this year, and I think in 10 years or so, it would be feasible. The other thing to consider is that a few elements of MSRs rely on gravity (i.e. fluid convection in the reactor, emergency drainage of fuel into drain tanks, chemical processes relying on buoyancy of gasses, etc.) Other than the moon, the simplest method of putting a MSR(s) in microgravity would likely be to locate the reactor(s) at the ends of rotating arm(s) and use centripetal forces to simulate a gravitational environment.

    November 10, 2019
    Reply
  84. David said:

    Just came back from Alfa Centauri.
    I've seen better.

    November 10, 2019
    Reply
  85. KiiDFLiiGHT said:

    This is the thing if human beings want to travel at lightspeed you need to use a radiation solar panel like spacecraft. You need to manipulate solar-energy that reproduces itself like a cycle. This means that the engine is based on radiation from space which it has. This and next generation should be investing in solar power for a reason. It could be 10 years from now that an evacuation is needed for humans to survive. You (NASA) keep looking at things in 2D that's why it hard for "scientists" to understand the universe and black holes. To fully understand the universe you must be at the 8th dimension to even travel at light-speed. The 9th dimension is where human beings should be able to chronically understand how the universe was made. Thus, from there this… god particle that scientists believe isn't within the human body. The so-called "GOD PARTICLE" is being at all dimensions at once. That means the ability to create life and destroy it, the same goes for planets being able to create new planets with new understanding and destroying it as well.

    November 10, 2019
    Reply
  86. Penny Lane said:

    Last I heard they didn't know how to make light sails so thin that could still withstand that laser blast…

    November 10, 2019
    Reply
  87. Red Roy said:

    Well, a combination of thrust and pull (from a gravity well, such as a star, neutron star, or black hole) could cut the cost of near light speed travel, immensely.

    November 10, 2019
    Reply
  88. EmperorTerran said:

    8:15 nukular jesus fucking christ

    November 10, 2019
    Reply
  89. Greg Bystroff said:

    Fun stuff, but what was all that rambling on at the end? What was that aboot?

    November 10, 2019
    Reply
  90. Patrick McAsey said:

    'Literally' warning. So rockets are 'still the best way we know of to literally get our feet off the ground' are they? The best way I know of literally getting my feet off the ground is to lie on the sofa. What the video means – and should say – is, 'The best way, figuratively speaking, of getting our feet of the ground is by using a rocket'.

    November 10, 2019
    Reply
  91. Dillon Britt said:

    Here's another thing. If you get the space craft there, because the electrical signals travel about the speed of light it will probably take several years for it to send the images back.

    November 11, 2019
    Reply
  92. justadbeer said:

    There are other issues that come into play that no one ever talks about, such as even at 10% light speed, dust or something as small as a grain of sand floating in space becomes a deadly projectile that can destroy a craft. How do we avoid these kind of issues. I recall a college collage prof brought this up many years ago.

    November 11, 2019
    Reply
  93. Todd F Wright said:

    Nuke-yuh-ler?

    November 11, 2019
    Reply
  94. xitup1 said:

    The video was good until he said "NUCULAR". Jesus, why is this a thing? It's literally pronounced exactly how it's spelled. NUCULAR isn't a word you dumbass. Say it with me now, NU-CLEAR. FFS

    November 11, 2019
    Reply
  95. NightShadowNinja said:

    8:15 Nuculer Power Plant? What does that even mean?

    November 11, 2019
    Reply
  96. Moolack Toast said:

    $10 Billion Budget in 2016…..seems nothing compared to the $686.1 billion "war" budget in 2019 …u stupid fucks 🙁

    November 11, 2019
    Reply
  97. Megazone Music said:

    08:11 SCREAMING LIKE DOC BROWN —– 100 JIGGA WATTS?!! — GREAT SCOTT!!!

    Please Tell me someone else was thinking that!

    November 11, 2019
    Reply
  98. SHAUN CAMPBELL9 said:

    Use the sun like UFOs do

    November 11, 2019
    Reply
  99. SHAUN CAMPBELL9 said:

    Don't travel to Alpha Centari, there aliens will eat us. You guys need to watch To Serve Man, From The Twight Zone

    November 11, 2019
    Reply
  100. Somaditya Sohini said:

    Click the link below if you are curious about the truth 👇
    https://youtu.be/I_PKwNrgbxY ,,,,,, I accept his opinion but it's not nearly accurate,,, but we can travel faster than speed of light,,,, trust me try to get it properly by clicking the link above I'm not drunk ☝️#Subscriber

    November 11, 2019
    Reply

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