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More than 8,000 years before the rise of Egyptian civilization, hunter-gatherers went on the attack in the Nile Valley.
Skeletons of adults, teens and children excavated in the 1960s at an ancient cemetery in Sudan known as Jebel Sahaba display injuries incurred in repeated skirmishes, raids or ambushes, say paleoanthropologist Isabelle Crevecoeur and her colleagues. The site, which dates to between 13,400 and 18,600 years ago, provides the oldest known evidence of regular, small-scale conflicts among human groups, says Crevecoeur, of the University of Bordeaux in France.
Although people buried at Jebel Sahaba don’t show signs of having fought in a one-time battle, they participated in an early form of sporadic warfare, the researchers conclude May 27 in
May 27, 2021
This image of Ingenuity was taken on May 23, 2021 – the day after its sixth flight – by the Mastcam-Z instrument aboard the Perseverance Mars rover.
The Ingenuity Mars Helicopter was built by JPL, which also manages the technology demonstration project for NASA Headquarters. It is supported by NASA’s Science, Aeronautics Research, and Space Technology mission directorates. NASA’s Ames Research Center in California’s Silicon Valley, and NASA’s Langley Research Center in Hampton, Virginia, provided significant flight performance analysis and technical assistance during Ingenuity’s development. AeroVironment Inc., Qualcomm, and SolAero also provided design assistance and major vehicle components. Lockheed Martin Space designed and manufactured the Mars Helicopter Delivery System.