Editing Hadean Eon (section)

=== Solar Wind ===
Beyond a distance of 5''R''<sub>☉</sub> from the Sun, the corona flows outward at a speed (near Earth) of 400 kilometres per second (km/s); this flow of charged particles is called the solar wind. The '''solar wind''' is a stream of charged particles (plasma) released from the upper atmosphere of the Sun (the corona) into space. The solar wind forms as hot coronal gas expands into space, accelerated by the Sun's intense heat and magnetic field.