The sun is getting bigger and smaller.
Author(s) Crane, Leah
Publication year 2018
Publication name New Scientist
Material typePeriodical

The article discusses solar cycles of the sun, in which the sun's magnetic field changes, causing the sun's radius to oscillate and the activity of solar flares to increase and decrease. Astrophysicists Alexander Kosovichev and Jean-Pierre Rozelot study 21 years of data and found the size of the sun fluctuates during its 11 year cycles by an estimated 1-2 kilometers.

Keyword(s)SUN, SOLAR cycle, SOLAR magnetic fields, SOLAR flares, SOLAR activity, STELLAR oscillations

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