Monday, November 15, 2010

Searching for extraterrestrial probes and sending our own probes by century’s end

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Stars - A NASA spacecraft scanning the sky has discovered a cold failed star that glows green in infrared light and has an atmosphere filled with deadly gases that would make it pretty stinky, too. See article.
g Abodes - A new study looking at fossil algae shows that variations in carbon dioxide 40 million years ago were tightly coupled to changes in global temperature. Understanding the relationship between the Earth's climate and carbon dioxide in the geological past can provide insight into the extent of future global warming expected to result from carbon dioxide emission caused by the activities of humans. See article.
g Life - New research is causing geologists to rethink the timeline of when animals appeared on the Earth. The fossil record indicates that a large number of animal species appeared during the Cambrian Explosion some 542 million years ago. Now it seems that their appearance may not have been so sudden. See article.
g Intelligence - Prehistoric people in southern Africa developed a highly skilled way of shaping stones into sharp-edged tools long before Europeans did, suggests a new study. See article.
g Message - Interstellar spacecraft are superior to electromagnetic wave propagation for extrasolar exploration and communication. The Search for Extraterrestrial Intelligence should include a search for extraterrestrial probes. See article. This article is from 1983.
g Cosmicus - By the beginning of next century, plans will be made to see alien life forms up close. See article.

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