Sir Norman Lockyer, English astronomer, c 1880s.
© Science Museum / Science & Society Picture Library
Studio portrait photograph by Walery with facsimile signature. Joseph Norman Lockyer (1836-1920) is regarded as one of the founders of astro-physics. He is probably best remembered for his work on the Sun and for his discovery of helium in the Sun's atmosphere in 1868. He was also interested in the clasification of stars and developed the meteoric hypothesis of stellar evolution. In 1869 he founded the influential scientific journal 'Nature', and in 1885 he became the world's first profesor of astronomical physics at the Royal College of Science in London (now part of Imperial College). He was knighted in 1897.