Fairly detailed and personal account of his life and work. Includes bibliography of major monographs. (From the Nobel e-Museum)

Brief obituary and photograph (from NASA's Astronomy Picture of the Day).

Brief biography including six photographs, summary of awards, and other references.

Concise biography from the National Academy of Sciences.

Brief biography and details of his scientific animosity with Eddington. (Author: Eric W. Weisstein)