Oh My

Joseph C.

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If this does turn out to be true - and that's quite a reach and then some - is it really a good idea letting an advanced civilisation know of your existence?

How long would it take the human race, or more likely, our descendants (be they machine or otherwise) to create structures so large that they can be identified from 1,400 light years away? Or 9.4 petametres in more useful units :mrgreen: That's basically a type two civilisation if it does turn out to be a Dyson Sphere/belt and we aren't even a type one yet.

http://www.independent.co.uk/news/world/forget-water-on-mars-astronomers-may-have-just-found-giant-alien-megastructures-orbiting-a-star-near-a6693886.html

A large cluster of objects in space look like something you would "expect an alien civilization to build", astronomers have said.

Jason Wright, an astronomer from Penn State University, is set to publish a report on the “bizarre” star system suggesting the objects could be a “swarm of megastructures”, according to a new report.

I was fascinated by how crazy it looked,” Wright told The Atlantic. “Aliens should always be the very last hypothesis you consider, but this looked like something you would expect an alien civilization to build.”

The snappily named KIC 8462852 star lies just above the Milky Way between the constellations Cygnus and Lyra. It first attracted the attention of astronomers in 2009 when the Kepler Space Telescope identified it as a candidate for having orbiting Earth-like planets.

But KIC 8462852 was emitting a stranger light pattern than any of the other stars in Kepler’s search for habitable planets.

Tabetha Boyajian, a postdoc at Yale told The Atlantic: “We’d never seen anything like this star. It was really weird. We thought it might be bad data or movement on the spacecraft, but everything checked out.”

In 2011 the star was flagged up again by several members of Kepler’s “Planet Hunters” team – a group of ‘citizen scientists’ tasked with analysing the data from the 150,000 stars Kepler was watching.

The analysts tagged the star as “interesting “ and “bizarre” because it was surrounded by a mess of matter in tight formation.

This was consistent with the mass of debris that surrounds a young star just as it did with our sun before the planets formed. However this star wasn’t young and the debris must have been deposited around it fairly recently or it would have been clumped together by gravity – or swallowed by the star itself.

Boyajian, who oversees the “Planet Hunters” project, recently published a paper looking at all the possible natural explanations for the objects and found all of them wanting except one – that another star had pulled a string of comets close to KIC 8462852. But even this would involve an incredibly improbable coincidence.

That’s when Wright, the astronomer from Penn State University and his colleague Andrew Siemion, the Director of SETI (Search for Extra-Terrestrial Intelligence) got involved. Now the possibility that the objects were created by intelligent creatures is being taken very seriously by the team.

The three astronomers want to point a radio dish at the star to look for wavelengths associated with technological civilizations. And the first observations could be ready to take place as early as January, with follow-up observations potentially coming even quicker.

“If things go really well, the follow-up could happen sooner,” Wright told The Atlantic. “If we saw something exciting… we’d be asking to go on right away.”
 
As much as I would like it to be artificial, even the most complex of the natural explanations is much simpler than the huge chain of things that must happen for it to be an artificial construct, and would thus be more likely.
 
amberwolf said:
As much as I would like it to be artificial, even the most complex of the natural explanations is much simpler than the huge chain of things that must happen for it to be an artificial construct, and would thus be more likely.


Oh I agree. But there is no fun in that. :x

If on the off-chance it is another civilisation. I don't think contacting them is a smart idea. 1,400 lights years away, as enormous that distance is, is way too close for comfort for such a technologically superior civilisation.

Although it probably doesn't matter anyway we have about 1,300 years before our early communication signals reach that far away. That's leaves 2,700 years before they come assuming they don't have access to exotic matter and can somehow overcome the problems of warp fields (controlling it and preventing it from obliterating anything in its path). Then they either take us under their wing, they ignore us, or they ... :mrgreen:

I'd question the low-probability of it being a string of asteroids or comets. Just how many of these star systems have been identified and what is the overall probability of this specific event occurring in at least one of these systems? If you look at just one star system in isolation rather than the entire sample you can get distorted results.
 
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