At 88, historian David Levering Lewis, a biographer of W.E.B. DuBois, has filled in gaps in his knowledge of his own family line, and he takes readers along on the journey.

Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

President Donald Trump’s administration is using federal prisons to detain some people arrested in its immigration crackdown, the federal Bureau of Prisons said Friday, returning ...