Solar Activity – Past, Present, Future

Essay/paper by Dr. Leif Svalgaard Abstract As our civilization depends increasingly on space-borne assets and on a delicate and vulnerable earth-bound infrastructure, solar activity and its potential impact becomes of increasing importance and relevance. In his famous paper on the Maunder Minimum, Eddy (1976) introduced the notion that the Sun is a variable star on…

About these ads

High hopes for the Advanced Technology Solar Telescope

Sun-watchers hope giant telescope will get green light Observatory would reveal structures that trigger sunspots and space weather. Eric Hand Close and bright though it is, the Sun still defies a thorough understanding. One reason is that some of the features on its roiling surface are too small and short-lived to be studied even by…