Saturday, September 26, 2009

Real science: "Coldest spot in the solar system"

From New Scientist, 26 September 2009: On moon, "shadows cast by crater margins keep some regions in permanent darkness." The measurements by "instruments on NASA's Lunar Reconnaissance Orbiter" "revealed they stay at a chilly -240C, just 33C above absolute zero. Pluto was measured at -230C in 2006."

Catch probably is: Pluto's temperature quoted is average, rather than on its coldest spot. But New Scientist doesn't mention it.