Researcher unravels one of science's great mysteries
Thursday, April 1, 2010 - 05:21
in Astronomy & Space
In 1972, the late, world famous astronomer Carl Sagan and his colleague George Mullen formulated 'The faint early sun paradox. ' The paradox consisted in that the earth's climate has been fairly constant during almost four of the four and a half billion years that the planet has been in existence, and this despite the fact that radiation from the sun has increased by 25-30 percent...