A New Feed for the Allen Telescope Array and the Science That it Will Enable

The current feeds of the antennas in the Allen Telescope Array are somewhat unusual and provide wide bandwidth and good sensitivity.  We have recently developed an upgrade to the feed which has even more bandwidth and, equally important, substantially better sensitivity.  The new sensitivity is about as good as can be achieved.  We describe the steps to the upgrade and then lay out new science that is enabled by it, including SETI and the structure of both the nearby and distant universe.

ET Math: How Different Could It Be?

We like to think that intelligent aliens would have the same basic ideas about numbers and geometry as us, but, even if they do, they might express those ideas very differently. To illustrate what different forms a concept can take, I will show how differently the law ab=ba has been interpreted at different times in human mathematical culture. This seemingly basic law has several different origins -- in geometry, number theory, and set theory -- some of which seem alien even to experienced mathematicians.

First Contact: Scientific Breakthroughs in the Hunt for Life Beyond Earth (BOOK LAUNCH and panel)

For untold centuries, people have looked to the distant skies in search of life -- be it God-like or heavenly, demonic or the whole gamut of bizarre extraterrestrials imagined. Today, for the first time in human history, science is getting close to answering the eternal question of what lies beyond, and the science is generally pointing in one direction: That life is most likely a commonplace in the universe.

Exchanging Information with the Stars: Wide-­?Area Communication Writ Large

The search for extraterrestrial intelligence has sought radio beacons devoid of information content. It seems likely, however, that a civilization transmitting a radio signal intended for our detection will also be motivated to embed information within the signal, especially in view of the large speed-of-light latencies.

Science Fiction as a bridge between Future Societies and the Contemporary Russian and American Cultures

Dr. Mikhaylova will discuss images from science fiction literature and films which have addressed human interaction in space (created by Frederick Pohl, Ivan Yefremov, Arthur C. Clarke, in Star Trek, Avatar, etc.). Is international cooperation essential for humans to move into the Universe – or not? Has the time arrived to build burgers on Mars? Dr. Mikhaylova will discuss the results of recent internet contests of SF about space in Russia and the 'Back to the Future' contest conducted by NASA.

Statistical Equation for Habitable (SEH) and the Statistical Fermi Paradox

In this lecture Dr. Maccone will provide a statistical equation that we call Statistical Equation for Habitables (SEH) as well as its relationship to the Statistical Fermi Paradox. He will start by noting that the statistics of habitable planets may be based on a set of ten (and possibly more) astrobiological requirements first pointed out by Stephen H. Dole in his book “Habitable planets for man” (1964).

New Search Strategies for SETI

SETI continues to embroider the search strategy pioneered by Frank Drake, a half-century ago. Although the technology of the search has enormously improved, are we being too conservative in our choice of targets? In this talk, we'll consider some of the other places we might look for ET.

Modeling the Effects of the Interstellar Medium on Engineered Signals of Extraterrestrial Origin

Dr. Blair will discuss the impairments that can be imposed on signals of technological origin traveling through the interstellar medium (ISM). The ISM contains ionized regions where fluctuations in the electron density have a significant effect on signals propagating through the medium.

How to Build Cost-Optimized Interstellar Beacons (and How to Search for Them)

How would we on Earth build galactic-scale Beacons to attract the attention of extraterrestrials? An optimum tradeoff emerges by minimizing the cost of producing power density at long range. James Benford will show scaling, examples and costs. If ETI were to build a cost-optimum interstellar Beacon, how should we look for it? Jim will propose SETI search strategies, a new test for SETI Beacons and describe how observers can differentiate Beacons from pulsars or other exotic sources.


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