The Sun is now in the quietest phase of its 11-year activity cycle, the solar minimum - in fact, it has been unusually quiet this year - with over 200 days so far with no observed sunspots. The solar wind has also dropped to its lowest levels in 50 years. Detailed closeup of magnetic structures on the Sun's surface three-dimensional nature of the photosphere The total solar eclipse of February 16, 1980 A view of a sunspot and granules on the Sun's surface Solar flares produce seismic waves in the Sun's interior that closely resemble those created by earthquakes a massive solar flare ome (red) hot active regions Mercury is seen spreading coronal mass ejection (CME) as it blasts more than a billion tons of matter visually stunning prominence eruption the Moon across the face |
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