Abstract

In October-2010 the headlines of the science press were dominated by the announcement of the discovery of a “Goldilocks Planetâ€, Gleise 581g, which has a mass not too different from that of the Earth and has an orbit squarely in the middle of the habitable zone of its parent star. It was supposed to be not too hot, not too cold, but just right for the evolution of life. Steven Vogt of UC Santa Cruz, the lead author of the paper, was quoted (out of context) as saying, “The chances of life on the planet are 100%.†Now that some of the dust has settled concerning this reported discovery, I’d like to have a look at the work behind the announcement and consider its present status