Stephen Hawking and Russian Billionaire Start $100 Million Search For Aliens

An anonymous reader writes: Stephen Hawking is joining forces with Russian billionaire Yuri Milner to start a $100 million effort to search the skies for signs of alien life. The initiative is called Breakthrough Listen, which will pay for large amounts of access to the Green Bank Telescope and the Parkes Telescope to scan the skies for signals over the next 10 years. They say the search will be 50 times more sensitive than previous attempts, cover 10 times more of the sky, and scan a greater portion of the radio spectrum 100x faster. They add, "All data will be open to the public. This will likely constitute the largest amount of scientific data ever made available to the public. The Breakthrough Listen team will use and develop the most powerful software for sifting and searching this flood of data. All software will be open source." The project is also supported by Frank Drake, Ann Druyan, and Lord Martin Rees.

Comments

Awesome!

[aaaaaaargh!]

Finally some Russian billionaire who puts his money to good use. (No, I'm not joking.)

Futile search?

[Theovon]

My understanding has been that we should expect a civilization to use radio broadcasts that radiate out and which we can distinguish from noise for only maybe 100 or so years. Prior to that, they've not invented radio. After some point, all transmissions are compressed and/or encrypted so that they're harder to distingush from noise. And at some point, transmissions may be done via other media, such as point-to-point lasers and even things we haven't discovered yet. The likelihood is that all over civilizations have started at different points and progressed differently, so we've likely missed that window on all other civilizations.

Re:Futile search?

[Rei]

The speed of light also comes into play in the Fermi Paradox. It's quite possible that for a billion years there's been a vast galactic scale civilization in the universe emitting copious amounts of readily-identifiable radiation. But if that galaxy is more than a billion light years away, it would be physically impossible for us to see them.

There's lots of things about the universe that would make it hard for advanced lifeforms to spot each other unless they're close.

And I fully agree about our own solar system (although I personally think Mars is a terrible place to look and Europa is overrated). There's so many "worlds" in our solar system with fluids (including water, although I wouldn't be so bold as to say that it's a requirement for all life) and energy sources to harness. Organic chemicals seem very common too, even complex ones.

Of all of the bodies in the solar system, I think Enceladus has the best potential payoff in terms of "dollars vs. chance of finding evidence of life". Namely because you don't even have to land on it to do a sample return (but if you do want to land on it for better sample collection, it takes little energy to take off again). And because it emits its internal sea straight up into space. And its internal sea has interesting properties - namely, it's a hyperbasic sea caused by serpentinization of its rocky core, which is a process that also releases hydrogen, giving a potential fuel source to hydrogen-metabolizing life.

That said, my dream mission is still a Titan sample collection/return mission using an RTG-powered rotary nacelle craft to fly in hops all across the planet over the course of a year, recharging its flight batteries overnight on the surface and taking small samples from every potential terrain - dune fields, rivers, the various seas, cryovolcanoes, etc. It would then re-dock with its ascent stage (single solid stage similar to a small Pegasus stage), lift the ascent stage out of the atmosphere (to reduce drag) and as fast as possible until it's drained its flight batteries (which would happen quickly with the added load), ditch all unneeded weight and fire the ascent stage to re-dock with the ion-powered orbiter that got it there. The orbiter, having spent the past year skimming the outer layers of Titan's atmosphere for return propellant that doubles as an atmospheric sample return, would then return to Earth, possibly skimming Enceladus's plumes and Saturn's atmosphere on the way for more sample returns.

No question that would be a flagship mission, though, requiring two RTGs and three stages. An Enceladus-only return could probably be done on Discovery or New Frontiers budget (probably the latter).

Re:100 million quest to waste 100 million

[Rei]

It's a serious point. Our own radio signals are probably indistinguishable from background noise from Alpha Centauri, and they're actually reducing with time, not increasing.

Rather than than looking for "stray radio communication" (you really think an advanced society is going to lose lots of energy to stray communications?), we should either be striving for extreme optical / UV resolution (satellite-based interferometer telescope) so that we can spatially resolve surface spectra on extrasolar planets in our area to look for signs of life; and in general look for signs of energy release that might be associated with interstellar travel, such as antimatter annihilation, directed thrust, solar sail reflection, etc.

IMHO.