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The robotic drone is performing classified duties during the program’s fifth flight. The current mission — known as Orbital Test Vehicle (OTV-5) — was rocketed into Earth orbit on Sept. 7, 2017, atop a SpaceX Falcon 9 booster from Launch Complex 39A at NASA’s Kennedy Space Center (KSC) in Florida. [The X-37B X-37B missions are carried out under the auspices of the Air Force Rapid Capabilities Office, and mission control for OTV flights is handled by the 3rd Space ... gathering information on objects high above Earth and carrying out other intelligence-gathering duties. And that may be a signal as...

Full Title: "Fresh blow for Mars missions as researchers find long-duration space travel causes crippling back pain that can last for up to four YEARS" The changes in muscle composition are still present up to four years after long-duration spaceflight, according to the new research by Katelyn Burkhart, MS, of Massachusetts Institute of Technology and colleagues. They write, 'Spaceflight-induced changes in paraspinal muscle morphology may contribute to back pain commonly reported in astronauts.' The researchers analyzed computed tomography (CT) scans of the lumbar (lower) spine in 17 astronauts and cosmonauts who flew missions on the International Space Station. Scans obtained...