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TOPIC: SETI
Blobrana


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setiQuest Explorer
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The SETI Institute has launched private beta of the setiQuest Explorer smartphone app to view radio telescope data from SETI targets to help scan the radio signals for signs of intelligent life.

setiQuest Explorer is a web and mobile application for viewing radio telescope data from SETI targets and helping to identify and categorize patterns. It is a program of the SETI Institute, developed by The Hathersage Group, sponsored by Adobe Systems. If you would like to participate in the private beta program which begins in mid-March, then log in below using your Facebook credentials. We will not post to your wall, nor share your information with anyone.
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Blobrana


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RE: SETI
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Earlier this month, NASA's Kepler Mission announced it had found 54 planets orbiting stars in so-called "habitable zones" in our galaxy, where the climate could be suitable for liquid water.
After the planets were found, NASA alerted the SETI Institute (Search for Extra-Terrestrial Intelligence) of their locations. The institute's scientists started listening to those planets, and while they haven't heard any intelligent life yet, there's plenty of other noise to be heard in space.
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Blobrana


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Title: SETI: The transmission rate of radio communication and the signal's detection
Authors: P. A. Fridman

The transmission rate of communication between radio telescopes on Earth and extraterrestrial intelligence (ETI) has been calculated up to the distances 1000 light years. Phase-shift-keying (PSK) and frequency-shift keying (FSK) modulation schemes are both considered here. It has been demonstrated that M-ary FSK is advantageous in terms of energy. Narrow-band pulses scattered over the spectrum can be the probable signals of ETI and modern SETI spectrum analysers are well suited to searching for these types of signals. Such signals can be detected using the Hough transform which is a dedicated tool for detecting patterns on an image. The time-frequency plane representing the power output of the spectrum analyser during the search for ETI gives an image from which the Hough transform (HT) can detect signal patterns with frequency drift.

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Blobrana


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Earthling Scientists Work on Plan to Call ETs

It's been nearly 40 years since humans first tried contacting extraterrestrials with radio telescope technology, and as far as we know, nobody has said "hello" back to us.
If earthlings want to reach out and touch someone, we might have to change channels to connect with an intelligence that actually knows what we're saying -- and vice versa.
A team of scientists is developing a new series of protocols to more finely tune our efforts to talk to another civilization in the nearby galactic neighborhood. And they're hoping to enlist the public's help.
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Blobrana


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Title: The Search for signals of technological activities in the galaxy
Authors: Guillermo A. Lemarchand

In this article an analysis of the fundamentals used to search for extraterrestrial artificial signals in the galaxy, which have been developing for more than five decades, is presented. It is shown that the key factor for the success of these research projects is given by the technological civilizations lifetimes. Assuming the Principle of Mediocrity, estimations are made to determine the minimum number of civilizations that may co-exist in the galaxy and the probability of detecting a signal from them.

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Blobrana


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Observatories on 5 continents to scan skies for extraterrestrial life

The scientific search for extraterrestrial intelligence went global this weekend as observatories in 13 nations on five continents trained their telescopes on several promising star systems.
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Blobrana


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Campbelltown astrophysicist scotches alien rumours

A Campbelltown astrophysicist has unwittingly found himself at the centre of an international storm surrounding the age-old question of whether we are alone in the universe.
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Blobrana


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Benford beacons
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Listening for Aliens: What Would E.T. Do?

Based on an exhaustive analysis, the Benfords have concluded that it would be far more cost-effective for aliens who wanted to be detected to send out short, powerful bursts every so often to signal their presence.

"You send out a few pulses, then move on and come back every once and a while. That makes sense if aliens don't really know we're here" - Gregory Benford.

These so-called "Benford beacons" (a nickname bestowed by others in the community who are familiar with the idea) wouldn't necessarily show up when earthbound scientists happened to be listening, so it would be easy to miss them.

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Blobrana


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Cosmic Call 2
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The 70-metre Eupatoria Planetary Radar sends a METI  message Cosmic Call 2 to 5 stars: Hip 4872, HD 245409, 55 Cancri, HD 10307 and 47 Ursae Majoris that will arrive to these stars in 2036, 2040, 2044 and 2049 respectively.
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Blobrana


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RE: SETI
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It's too late to worry that the aliens will find us

Although we have yet to detect an alien ping, improvements in technology have encouraged us to think that, if transmitting extraterrestrials are out there, we might soon find them. That would be revolutionary. But some people, Hawking included, sense a catastrophe.
Consider what happens if we succeed. Should we respond? Any broadcast could blow Earth's cover, inviting the possibility of attack by a society advanced enough to pick up our signals.
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