Eugene Parker, pioneer of theoretical solar and plasma astrophysics, was born June 10, 1927. Parker revolutionized the field of heliophysics, notably by first proposing the existence of the solar wind — a stream of charged particles ejected from the Sun — in 1958. His theory was confirmed by Mariner II in 1962. Among many other Continue reading "June 10, 1927: The birth of Eugene Parker" The post June 10, 1927: The birth of Eugene Parker appeared first on Astronomy Magazine .