"James Bradley (1693-1762) was an English astronomer and priest who served as Astronomer Royal from 1742. He is best known for two fundamental discoveries in astronomy, the aberration of light (1725-1728), and the nutation of the Earth's axis (1728-1748). These discoveries were called ""the most brilliant and useful of the century"" by Jean Baptiste Joseph Delambre, historian of astronomy, mathematical astronomer and director of the Paris Observatory,...