Tuesday, October 30, 2012

Space germs may hold the upper hand

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 - Most big galaxies fit into one of two camps: pinwheel-shaped spiral galaxies and blobby elliptical galaxies. Spirals like the Milky Way are hip and happening places, with plenty of gas and dust to birth new stars. Ellipticals are like cosmic retirement villages, full of aging residents in the form of red giant stars. Now, astronomers have discovered that one well-known elliptical has a split personality. Centaurus A is hiding a gassy spiral in its center. See article.
g Abodes - A new hypothesis explains the origin of Saturn's strange middle-sized moons. The moons may have been spawned during giant impacts that occurred when several major satellites merged to form Saturn's large moon, Titan. See article.
g Cosmicus - A new study suggests that microgravity and prolonged space flight could give unique advantages to germs. The data could be valuable in planning future long-duration missions to the Moon, Mars and beyond. See article.

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