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This is an artist's rendering of solar wind coming towards the Earth and its magnetosphere.
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NASA.

Solar Wind

The Sun is flinging 1 million tons of material out into space every second! We call this material solar wind. If you add all this material up over the course of a day, it's like the mass of Utah's Great Salt Lake. And this happens every day, day after day, year after year!

We can't see this material coming from the Sun, but we know that it causes:

The solar wind travels very, very fast, and it travels very, very far! The solar wind goes all the way out past Pluto to the heliopause. There are a few spacecraft like Ulysses and Voyager I & II which are helping scientists study solar wind from the Sun all the way out to Pluto.

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF