Tracking Arctic freshwater flow from space

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Arctic rivers and runoff from the land pour vast volumes of freshwater into the Arctic Ocean, influencing seawater salinity, sea-ice formation and ocean circulation, thereby playing an important role in regulating Earth’s heat balance. As northern monitoring networks decline, scientists have turned to satellite data to reconstruct two decades of river discharge and runoff, revealing

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NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion

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A quarter-century after its first observations of the full Crab Nebula, NASA’s Hubble Space Telescope has taken a fresh look at the supernova remnant. The result is an unparalleled, detailed look at the aftermath of a supernova and how it has evolved over Hubble’s long lifetime. A paper detailing the new Hubble observation is published

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NASA to Provide Update on Implementation of National Space Policy

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NASA will host a public event at 9 a.m. EDT on Tuesday, March 24, at the Mary W. Jackson NASA Headquarters in Washington to outline how the agency is executing President Donald J. Trump’s National Space Policy and accelerating preparations for America’s return to the surface of the Moon by 2028. The program will open with remarks from NASA

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