SETI's Alien Telescope Array (ATA) listens day and night for a signal from space (SETI)  Read more:

SETI’s Alien Telescope Array (ATA) listens day and night for a signal from space (SETI)

This past week, a few scientists took the bench and gave the U.S. Congress a relative date by which they expect we’ll have discovered signs of intelligent life elsewhere in the universe. According to their estimates, by 2034 we should make first contact or 30 years ahead of Star Trek’s first contact. Whether this was just a stunt, a ploy meant to convince Congress to up SETI’s budget, or a genuine estimate is difficult to tell.

Aliens: we’ll find them soon enough

The claim was made during a hearing of the House Committee on Science, Space and Technology. Astronomers shuffled in front of the US officials and assured them that aliens would be found in the near future.

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“At least a half-dozen other worlds besides Earth that might have life are in our solar system. The chances of finding it, I think, are good, and if that happens, it’ll happen in the next 20 years, depending on the financing,” said Seth Shostak, a renowned astrobiologist.

Depending on the financing, indeed. Shostak is a Senior Astronomer at the SETI Institute, an agency tasked with finding out about the existence of intelligent life anywhere in the universe by discovering radio signals which have artificial origin from outer space. The project was first launched in 1984 with great enthusiasm, following popular interest for extraterrestrial entities after movies like E.T. and Alien swept the globe. Today, SETI has a budget of only $1 million and was nearly shut down and would have been were it not for the support of thousands who donated to keep SETI alive.

[ALSO READ] Most promising Earth-like planets found by Kepler

With this in mind, I have to admit I was astonished to read Shostak’s statement, but how far off is he really? What Shostak and his colleagues at SETI are actually trying to point out is that given our current rate of technological advancement, it will only be a matter of time until we manage to pick up extraterrestrial signals. The next generation of supercomputers and telescopes will definitely aid in attaining this objective, and recent discoveries by the now famous Kepler telescope have been more than encouraging. Thanks to Kepler we now have a much better and broader understanding of the Universe. We know for instance that there are innumerable Earth-like planets that orbit stars in a habitable zone.

“Recent analyses of Kepler data suggest that as many as one star in five will have a habitable, Earth-size planet in orbit around it,” Shostak told the lawmakers. “This number could be too large by perhaps a factor of two or three, but even so it implies that the Milky Way is home to 10 to 80 billion cousins of Earth.”

SETI certainly is currently equipped for the job, with its deployment of Arecibo’s 305-meter telescope, the largest in the world, and throughout the entire year Arecibo’s 305-meter telescope scans the cosmos for signals from alien civilization. With only 1$ million funding a year, however, one can only wonder how the staff manages to survive, let alone have time and energy to search for aliens. Shostak hopes that by investing in SETI now, we will be able to take advantage of our dramatically increased computing power to tune into a very distant talk show or whatever it is that aliens might have broadcast at one point.

“It’s unproven whether there is any life beyond Earth…I think that situation is going to change within everyone’s lifetime in this room,” Shostak said.