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Still staying at more than 20 million MPH [Video]

Due to SciTechDaily August 20, 2020 Kepler’s Supernova Remnant. Credit: NASA / CXC / Univ of Texas at Arlington / M. Millard et al. Astronomers have used NASA‘s Chandra X-ray Observatory to record material moving away from the side of an exploding star at speeds faster than 20 million miles …

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