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Why Interstellar Travel Will Be Possible Sooner Than You Think
Singularity Hub ^ | June 18, 2018 | Mark Jackson

Posted on 06/21/2018 10:43:19 PM PDT by 2ndDivisionVet

The term “moonshot” is sometimes invoked to denote a project so outrageously ambitious that it can only be described by comparing it to the Apollo 11 mission to land the first human on the Moon. The Breakthrough Starshot Initiative transcends the moonshot descriptor because its purpose goes far beyond the Moon. The aptly-named project seeks to travel to the nearest stars.

The brainchild of Russian-born tech entrepreneur billionaire Yuri Milner, Breakthrough Starshot was announced in April 2016 at a press conference joined by renowned physicists including Stephen Hawking and Freeman Dyson. While still early, the current vision is that thousands of wafer-sized chips attached to large, silver lightsails will be placed into Earth orbit and accelerated by the pressure of an intense Earth-based laser hitting the lightsail.

After just two minutes of being driven by the laser, the spacecraft will be traveling at one-fifth the speed of light—a thousand times faster than any macroscopic object has ever achieved.

Each craft will coast for 20 years and collect scientific data about interstellar space. Upon reaching the planets near the Alpha Centauri star system, an the onboard digital camera will take high-resolution pictures and send these back to Earth, providing the first glimpse of our closest planetary neighbors. In addition to scientific knowledge, we may learn whether these planets are suitable for human colonization.

The team behind Breakthrough Starshot is as impressive as the technology. The board of directors includes Milner, Hawking, and Facebook co-founder Mark Zuckerberg. The executive director is S. Pete Worden, former director of NASA Ames Research Center. A number of prominent scientists, including Nobel and Breakthrough Laureates, are serving as advisors to the project, and Milner has promised $100 million of his own funds to begin work....

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


TOPICS: Science; Travel
KEYWORDS: exoplanets; space; yurimilner
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To: cynwoody
The article proposes accelerating a bunch of tiny probes to 0.2c via earth-based lasers...

Should mount the lasers on the spacecraft itself. Laser light travels at the speed of light for any observer, so where it is sourced is immaterial. Then, braking is a non-issue, with a turning maneuver about half-way.

61 posted on 06/22/2018 3:23:44 AM PDT by C210N (Republicans sign check fronts; 'Rats sign check backs.)
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To: freedomjusticeruleoflaw

“If that has any possibility of working, and if there is any other life in the universe, it would already have been done and it would have hit every single star within our galaxy by now.”

That assumes the beings wanted to do as you described. Also who is to say aliens machines have not observed or even visited the Earth at some time in the past? Aliens might have been able to get what they need from their star system or adjacent star systems.


62 posted on 06/22/2018 3:40:11 AM PDT by plain talk
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To: cpdiii
"This is total crap science not worthy of discussion. "

Absolutely!

It's 5:35 AM -- and, Im stilll up, so the old mental cruncher's not working at top efficiency -- but...

Just consider what acceleration from ~zero to .25C in 2 seconds would do to human passengers! (Can you say, "red goo smeared all over the aft bulkheads"?)

63 posted on 06/22/2018 3:41:41 AM PDT by TXnMA ("Allah": Satan's current alias; "0bama": Allah's stooge; "Moderate Muslims": Allah's useful idiots.)
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To: Moonman62

You and I have gone back and forth on this.

Money is fungible.

Musk is moving it back and forth from venture to venture—a plate spinning exercise.

Eventually a plate will hit the floor with a loud crash—and the taxpayers will be left footing the bill.

Giving him new federal contracts is like feeding drugs to a junkie—never trust a junkie.


64 posted on 06/22/2018 3:46:55 AM PDT by cgbg (Hidden behind the social justice warrior mask is corruption and sexual deviance.)
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To: cpdiii
Just plug in the numbers for those understand weight

I think you mean mass, but, you know, crap science and all...

65 posted on 06/22/2018 3:55:11 AM PDT by Sirius Lee (In God We Trust, In Trump We MAGA)
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To: cgbg

Eventually a plate will hit the floor with a loud crash—and the taxpayers will be left footing the bill.

...

You mean like the $475 billion dollar loan that he paid back nine years early? It was paid in 2013. The other car companies haven’t paid theirs back yet.


66 posted on 06/22/2018 4:00:34 AM PDT by Moonman62 (Give a man a fish and he'll be a Democrat. Teach a man to fish and he'll be a responsible citizen.)
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To: Born to Conserve

That could actually happen. Faster interstellar ships will pass by their predecessors from years before. From the perspective of the crews in the slower ships, the crews in the newer and faster ships will be time travellers, visitors from the future.

This has the makings of a good science fiction story.


67 posted on 06/22/2018 4:07:10 AM PDT by SamAdams76 ( Have you eaten your bone marrow today?)
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To: Telepathic Intruder
No one has successfully broken any law of physics--there have only been modifications to it, such as Einstein's modifications to Newton's laws of gravity.

Accurately speaking, no one has modified physical law, either. All anyone has ever done is to refine theory to better describe the immutable physical reality.

68 posted on 06/22/2018 4:11:09 AM PDT by exDemMom (Current visual of the hole the US continues to dig itself into: http://www.usdebtclock.org/)
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To: freedomjusticeruleoflaw
If we are ever visited by aliens, they will be robots.


Exterminate! Exterminate!!

69 posted on 06/22/2018 4:15:45 AM PDT by usconservative (When The Ballot Box No Longer Counts, The Ammunition Box Does. (What's In Your Ammo Box?))
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To: Telepathic Intruder
I wonder if the same thing can happen with space travel.

The answer is no. There is no physical law preventing computing power from increasing and chipsize decreasing. There are the fundamental laws of the universe that govern how fast you can go. First the universal speed limit - the speed of light. Next Newton's laws: the conservation of momentum and e = 1/2mv2. Next thermodynamics 2 laws: energy can neither be created nor destroyed, and the entropy of the universe always increases.

Oddly enough this proposal doesn't violate any of these, so theoretically it might work, buy how you can get enough of a power source into a microsized chip to transmit a detectable signal 24,000,000,000,000 miles remains somewhat of a puzzle and how an ultra low mass object traveling at 1/5 light speed could possible survive its encounters with stray atoms in the interstellar medium I have no idea, and I suspect the proponents of this idea don't either.

70 posted on 06/22/2018 4:16:06 AM PDT by from occupied ga (Your government is your most dangerous enemy)
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To: SamAdams76

In SF author David Weber’s “Honor Harrington” series, this was a problem. A group of colonists would purchase settlement rights to a planet, then set off from Earth in a sub-light cryogenic ship. Decades or centuries later, another group in a hyperspace capable (effectively faster than light) ship would pass them and squat on the same planet.

The first group would arrive and find themselves outgunned and with outdated tech. It usually would not end well.


71 posted on 06/22/2018 4:17:36 AM PDT by drop 50 and fire for effect ("Work relentlessly, accomplish much, remain in the background, and be more than you seem.")
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To: 2ndDivisionVet

Ah...no


72 posted on 06/22/2018 4:21:06 AM PDT by Zathras
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To: 2ndDivisionVet

Last I heard was that F still equals M x A. Shooting photons (tiny M if any at all) at some fairly large craft (M) still equals some minute A, or have photons recently became really massive? Didn’t think so.


73 posted on 06/22/2018 4:21:28 AM PDT by Manly Warrior (US ARMY (Ret), "No Free Lunches for the Dogs of War")
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To: Windflier
We've been in a dark age of physics for a long time now, but you wouldn't know it because mainstream academia filters out all dissent and breakthrough discoveries that upset the prevailing paradigm.

The same people who are suppressing the 100 mpg carburetor no doubt.

Search on 'electric universe' to learn more.

Oh well if it's on the internet it has to be true.

74 posted on 06/22/2018 4:21:35 AM PDT by from occupied ga (Your government is your most dangerous enemy)
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To: Telepathic Intruder

“the computer revolution”

I was easy given the millions of engineers brought on board because of huge profits forseen.

Mostly just becoming able to make smaller and smaller circuits, which by their smallness are also faster. Lasers and fiber optic transmission are part of the picture. The ability to build cheap, beautiful, large color displays is in there.

Here’s something that’s hard: making batteries with higher energy per pound.


75 posted on 06/22/2018 4:38:30 AM PDT by cymbeline
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To: cpdiii

You are correct.


76 posted on 06/22/2018 4:52:13 AM PDT by Phlap (REDNECK@LIBARTS.EDU)
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To: Sirius Lee

+1


77 posted on 06/22/2018 5:07:35 AM PDT by kanawa (Trump Loves a Great Deal)
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To: Telepathic Intruder
If you’d like me to debunk any of those theories,... Just provide any fact related to it.

Well, if its a fact, it can't be debunked. I should have been an English teacher. lol

78 posted on 06/22/2018 5:11:50 AM PDT by Phlap (REDNECK@LIBARTS.EDU)
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To: PIF

Just for accuracy, we’re not at the edge. We’re actually about halfway out on the disk, but in a small, not-very dense sub-arm. “Backwater”, I’ll give you.


79 posted on 06/22/2018 5:31:33 AM PDT by Little Pig
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To: freedomjusticeruleoflaw

“And by the way. If we are ever visited by aliens, they will be robots.”

That’s where I heard the name Dyson. He was the one who gave life to the terminators.


80 posted on 06/22/2018 5:42:04 AM PDT by EQAndyBuzz (Proud member of the DWN party. (Deplorable Wing Nut))
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