All the ancestors of contemporary Europeans apparently did not migrate out of Africa as previously believed. According to a new analysis of more than 5,000 teeth from long-perished members of the genus Homo and the closely related Australopithecus, many early settlers hailed from Asia. Erik Trinkaus, a physical anthropologist at Washington University in St. Louis…

Read more Is the Out of Africa Theory Out?

WASHINGTON — NASA’s fiscal year 2019 budget proposal will include plans to end funding for the International Space Station in 2025, but leaves open the possibility of handing part or all of the station over to private operators. The budget proposal, due to be released Feb. 12, will include a request for $150 million to support…

Read more NASA Budget Proposal Plans End of NASA Funding of ISS

“Every day, more than 800 million viruses are deposited per m2 above the planetary boundary layer,” said Dr. Curtis Suttle, a virologist at the University of British Columbia. “Roughly 20 years ago we began finding genetically similar viruses occurring in very different environments around the globe.” Read more..

Read more Deposition rates of viruses and bacteria above the atmospheric boundary layer

Stone-tool makers in what’s now India redesigned their products in a revolutionary way much earlier than previously thought. Excavated stone artifacts document a gradual shift from larger, handheld cutting implements to smaller pieces of sharpened stone, known as Middle Paleolithic tools, by around 385,000 years ago, researchers say. That shift mirrors a similar change seen…

Read more Sharp stones found in India signal surprisingly early toolmaking advances

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