Stephen Engelberg was the founding managing editor of ProPublica from 2008-2012 and became editor in chief on Jan. 1, 2013. He came to ProPublica from The Oregonian in Portland, where he had been a ...
Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the Milky Way galaxy, such as its gravitational potential and the distribution of ...
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