Space weather patterns: Plasma in near-Earth space was twice as heavy around 1958 and 1970
Monday, June 20, 2016 - 10:31
in Astronomy & Space
A Japanese team have digitalized magnetogram recordings taken before direct observations by satellites became available. The analog recordings, taken for 72 years since the early 20th century, provide a window onto space weather in the mid-1900s and shed light onto future patterns of plasma movement in near-earth space.