Tuesday, May 12, 2009

Oxygen blamed for first ice age and two-thirds of adults think ETI exist

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 - Scientists have determined that the rise of oxygen on Earth may have caused the planet's first ice age. The research team believes that rising oxygen levels could have consumed atmospheric greenhouse gases, ultimately cooling the entire planet and profoundly influencing the evolution of life. See article.
g Learning - Here’s a neat Web site that links to sites offering K-12 instructional materials on space exploration astrobiology.
g Imagining - During the past several years, evolutionary biologists have proved that the disparate creatures of our planet are, at a fundamental genetic level, very similar to one another. The genes that differentiate the top and the bottom of a bug, for instance, are the same ones that differentiate our fronts from our backs. According to the paleontologist Stephen Jay Gould, this new understanding is among "the most stunning evolutionary discoveries of the decade," and is clearly "a dominant theme in evolution." The same law applies, it appears, to the extraterrestrial creatures that come out of Hollywood. See article. Note: This article is from 1997.
g Aftermath - Two-thirds of adults think there are other forms of intelligent life in the universe, according to a recent Roper poll. This belief tends to be more prevalent among males, adults ages 64 or younger, and residents of the Northeast as opposed to North Central and South. See article.

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