WASHINGTON — A new report echoes concerns voiced over the past year by the National Oceanic and Atmospheric Administration (NOAA) that the aging of U.S. Earth observation satellites, coupled with delays in the next-generation U.S. civil polar-orbiting weather satellite program, puts the U.S. “at risk of having serious gaps in observational capability, for both operational forecasting missions and for key climate records.”

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Dan Leone is the NASA reporter for SpaceNews, where he also covers other civilian-run U.S. government space programs and a growing number of entrepreneurial space companies. He joined SpaceNews in 2011.Dan earned a bachelor's degree in public communications...