Tag: Solar Dynamics Observatory
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Ahead of total solar eclipse, scientists use spacecraft data to predict the Sun’s corona
On April 8, a total solar eclipse will sweep across the continental United States — the first since 2017 and the last until Aug. 12, 2045. During totality, or the moment at which the Moon is completely covering the Sun, the Sun’s outer atmosphere, called the corona, and other prominences become visible to the naked…
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Scientists discover first long-lasting radio bursts above sunspots
A team of NASA-funded scientists recently discovered long-lasting radio signals above sunspots — regions of the Sun’s surface where the magnetic field is so strong that surface temperatures are reduced and surrounding atmospheric pressure decreases, creating dark spots on the solar surface. The team’s results show the radio signals are emanating from the sunspots in…