Research Professor of Astronomy and Astrophysics, Pennsylvania State University
I am the lead scientist for NASA's Swift Ultraviolet/Optical Telescope.
6 charts shows key role firearms makers play in America’s gun culture
May 28, 2022 11:22 am UTC| Insights & Views
Americans have blamed many culprits, from mental illness to inadequate security, for the tragic mass shootings that are occurring with increasing frequency in schools, offices and theaters across the U.S. The latest,...
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