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DNA analysis offers insight into Japan’s ancient population boom, bust

DNA analysis offers insight into Japan’s ancient population boom, bust

Science
June 20 (UPI) -- Scientists have gained new insights into the history of Japan's early residents by analyzing the Y chromosomes of modern Japanese men. The analysis allowed researchers to estimate the ancient human population living on Japan's main island some 2,500 years ago. "Evidence at archaeological dig sites has been used to estimate the size of ancient human populations, but the difficulty and unpredictability of finding those sites is a big limitation," Jun Ohashi, an associate professor of human evolutionary genetics at the University of Tokyo, said in a news release. "Now we have a method that uses a large amount of modern data." Researchers estimate Japan was occupied by the Jomon people prior to 500 B.C. Around 2,500 years ago, they were joined by Yayoi people. The Yayoi migr...

Investment offer to take Cornwall and Virgin into orbit

Science
The UK government and Cornwall Council are prepared to invest up to £20m into Newquay airport (Spaceport Cornwall) to make it a base for Virgin Orbit.Orbit is the satellite launch system currently being developed in the US by Sir Richard Branson.This system intends to despatch rockets to space from under the wing of a converted Virgin Atlantic jumbo jet.The investment offer is dependent on Spaceport Cornwall and Virgin Orbit putting together the business case.If everything comes together, however, it could see the jet, called Cosmic Girl, operating out of Newquay in the early 2020s."We're eager to fly from lots of places, to have hubs and gateways to key orbits," explained Will Pomerantz, vice president for special projects at th