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Science  10 May 2019:
Vol. 364, Issue 6440, pp. 514-516
DOI: 10.1126/science.364.6440.514

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In science news around the world, the Democratic Republic of the Congo plans to expand its use of an experimental vaccine to fight a stubborn outbreak of the Ebola virus, science supporters gather at more than 100 locations for the third annual March for Science, physicists detect several more sources of gravitational waves, and a $9 million gift fuels new cannabis research. Also, the U.S. Government Accountability Office warns of ballooning costs for nuclear waste cleanup, a NASA investigation finds that manufacturer fraud caused satellite launch failures costing $700 million, H5N1 influenza resurfaces in Nepal, and paleontologists describe a new species of bat-winged dinosaur.