What are sunspots and solar wind?

Sunspots are dark spots that appear on the surface of the Sun.

They are caused by intense magnetic activity in the Sun's atmosphere.

Solar wind is a stream of charged particles released from the Sun's upper atmosphere.

Solar wind consists of electrons, protons and alpha particles.

Solar wind causes the aurora, or northern and southern lights, on Earth.

Solar wind also affects the Earth's magnetosphere, which can disrupt radio communications and power grids.

Solar wind can also cause geomagnetic storms, which can damage satellites and other spacecraft.

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