Thursday, October 29, 2009

Working definition of ‘extraterrestrial life” and how the search for ETI transforms society

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Abodes - Researchers have discovered connections between volcanoes and a deadly ice age that occurred 450 million years ago. The study reports that the volcanoes may have release massive amounts of carbon dioxide, causing global warming. However, when they stopped erupting, an ice age began. See article.
g Life - It's not easy to look for life somewhere other than Earth. First, scientists searching for life in space have to come up with a working definition of “extraterrestrial life.” Next, they need to develop a strategy identifying places and methods for their search. To make matters more complicated, all of this has to be done without contaminating the search site with life from Earth or contaminating Earth with potential extraterrestrial life. See article.
g Message - When the Voyager 1 and 2 spacecraft were launched in 1977, they each included a gold-plated phonograph record (a "golden record") of natural sounds, greetings in human voices, and a variety of music. The record cover has symbolic instructions that show how to use and understand the record, though scientists still debate whether other civilizations will be able to decipher them. For info on Voyager’s golden record, see article. For an explanation of the record cover diagram, click here. For an interactive module that contains greetings, sounds, and pictures included on the record (requires Flash plug-in), click here.
g Cosmicus - The climactic rocket showdown for a million-dollar prize from NASA has begun in California's Mojave Desert. See article.
g Learning - The Carl Sagan Prize will not exactly swell one's bank account, but it means a lot to Geoff Marcy, a UC Santa Cruz alum and UC Berkeley astronomer famous for discovering many of the known planets outside the solar system. See article.
g Aftermath - The Search for Extraterrestrial Intelligence cannot guarantee success in a trivial, superficial sense (that is in the form of the discovery of an alien civilization). But at its deeper levels SETI certainly stimulates and influences our thoughts and transforms our society in profound ways. See article.

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1 comment:

psychic predictions said...

Are there new updates for this search?