Tuesday, April 08, 2008

Fomalhaut’s habitable zone and interstellar messaging

Welcome! “Alien Life” tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. You may notice that this and future entries are shorter than usual; career, family and book deal commitments have forced me to cut back some of my projects. Now, here’s today’s news:
g Stars - What would be the habitable zone around the famous nearby star Fomalhaut?
g Abodes - NASA's Cassini Spacecraft has found evidence that Saturn's moon Titan may harbor an underground ocean of water and ammonia. It is an important finding for astrobiologists who are searching for potential habitats for life in our Solar System. See article.
g Life - Researchers say that clues from the ancient sedimentary rocks which overlie the massive iron ore deposits in the Pilbara hold the key to solving the puzzle - and probing them may also help mining companies come up with better ways of extracting iron ore by giving new insights into the resource. See article. For related story, see “Low oxygen and molybdenum in ancient oceans delayed evolution of life by 2 billion years.”
g Message - Here’s a neat Web site: “Interstellar Messaging.” You’ll find discussion, history and real-world examples of mankind's methods and ongoing attempts to communicate with extraterrestrials. See article.