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Telepresence — Our Best Bet For Exploring Space
Seth Shostak of the SETI Institute recently wrote an opinion piece for the NY Times discussing the limitations of our space technology. He makes the harsh point that transporting human beings to other star systems isn't a reasonable goal even on a multi-generational time frame. However, advances in robotics and data gathering could instead bring the planets and stars to us, and do it far sooner. Quoting:
"Sending humans to the stars is simply not in the offing. But this is how we could survey other worlds, around other suns. We fling data-collecting, robotic craft to the stars. These proxy explorers can be very small, and consequently can be shot spaceward at tremendous speed even with the types of rockets now available. Robot probes don't require life support systems, don't get sick or claustrophobic and don't insist on round-trip tickets. ... These microbots would supply the information that, fed to computers, would allow us to explore alien planets in the same way that we navigate the virtual spaces of video games or wander through online environments like Second Life. High-tech masks and data gloves, sartorial accessories considerably more comfortable than a spacesuit, would permit you to see the landscape, touch objects and even smell the air."
The real first step in exploring the stars will be re-evaluating what it means to be human. This article assumes that our descendants will be flesh-and-blood, with all of the weaknesses that that entails. But why should we bind our offspring to the ancient, easily-corrupted, and not so easily amended DNA that we ourselves use, when we could give them minds of silicon and arms of steel which fold up in an instant to sleep for the journey from star to star? Or better still, why not send a simple automaton, and transmit its brain at the speed of light? Human is as human does, I suppose, and the human era will quickly draw to a close if we decide that human must mean flesh and blood.
The long term goal of all space exploration should be a permenant human presence on another planet, Mars most likely. All the science is great, but I want the human race to survive if the Earth takes a big hit.
Anarchists never rule
we are going to have to put some human beings somewhere else besides this one ball of rock.
Saying that even multi-generational ships are not "a reasonable goal" begs the question (and is debatable... after all, this is an "opinion piece").
Reasonable or not, eventually it will be done. I have nothing against robotic explorers, but only as precursors to something better.
Not the proposal exactly (well with latency actually yes), but...
Robot probes don't require life support systems, don't get sick or claustrophobic and don't insist on round-trip tickets.
They also can't use intuition and years of training and curiosity combined to go, "hey what's that" as they glance over to the side at something a rover would have just rolled past.
We could learn more in a day of manned exploration of Mars for example than we have with the entire exploration effort to date.
Humans are too flexible not to send out for exploration, and I hate to say it but far cheaper to build (though again you have the issue of latency).
I also refuse to believe we'll never be able to freeze and re-animate a living person hundreds of years later, though that will take a good long while to get right.
"There is more worth loving than we have strength to love." - Brian Jay Stanley
Uh... Aren't they forgetting the inconvenient slowness of the speed of light? Unless they solve the FTL comms problem...
Using quantum entanglement, that may not be so far off. If it turns out information can be transmitted near-instantaneously, telepresence could become a reality. Available bandwidth would only be limited by our capacity to create and address these particles and how fast we can read and write to them.
Of course, that's a big "if"...
-- Joren
Which speed of light are you using? The moon is about 385,000 km from Earth.
"Slow down, Cowboy! It has been 3 years, 7 months and 26 days since you last successfully posted a comment."
More advanced robots, that we developed (along with much faster propulsion systems) in the decades since the originals were launched.
Hat tip: Carl Sagan, I think. Or maybe Azimov.
- Alaska Jack