Did Aborigines discover America?
In this issue of Cosmos Magazine, we looks at whether the ancestors of Australian Aborigines might have been the first to reach America. A growing number of new archaeological discoveries suggest that the New World was settled much earlier than thought, and by at least two different groups of people. Plus we detail why scientists are finally hopeful that a cure for AIDS is possible, and might be able to eliminate the virus from the body for good. We find out how climate change could lead to an increase in earthquakes and eruptions; look at how geoengineering might actually work; join astronomers at the South Pole as they try to unravel the mystery of dark energy; and look at an intriguing new theory that explains many of the most puzzling marine dilemmas.