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Science News, June 30, 2007 by Edmund Smith, R. Cowen
No mention was made in "In the Zone: Extrasolar planet with the potential for life" (SN: 4/28/07, p. 259) of the possibility that, being so close to its star and having a 13-day orbital period, the planet would keep the same surface to the star. Having one side baked by unrelenting sunlight and the other side frozen would leave only a narrow ring between eternal day and eternal night that might have what could be called average conditions suitable for liquid water. I would think that the probability for life to start and survive would be very unlikely.
EDMUND SMITH, BROGUE, PA.
In some models of planets, especially those with atmospheres, heat flows between the day and night sides, so the temperatures aren't so extreme.--R. COWEN
COPYRIGHT 2007 Science Service, Inc.
COPYRIGHT 2008 Gale, Cengage Learning
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