Most star systems in the universe, but not ours, are binary systems, having two stars.

Marie Curie is the only person to date to have won the Nobel prize in both Physics and Chemistry.

Leonard Roy Harmon of Cuero, Texas, was the first African-American after whom a U.S. Navy ship was named. It was the now retired and scrapped USS Harmon, a destroyer that saw action in World War II, followed by training operations with submarines in the Panama Canal Zone.

According to FiveThirtyEight.com, a 1969 track called “Amen, Brother” by the Winstons is the most sampled track in history. By its count, more than 2,000 songs have sampled a particular drum beat from it.

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