A huge solar storm is heading for Earth, and it's likely to hit tomorrow.

The storm could knockout satellites, disrupt power supplies and spark stunning displays of the Northern Lights.

It was created last week by an enormous explosion in the sun's atmosphere known as a solar flare, and charged particles from that flare are now on their way to our planet.

The arrival of the solar storm coincides with the formation of 'equinox cracks' in Earth's magnetic field, which some scientists believe form around the equinoxes on March 20 and September 23 each year.

These cracks weaken our planet's natural protection against charged particles and could leave commercial flights and GPS systems exposed to the incoming storm.

The cracks also mean stargazers are more likely to catch glimpses of the Northern lights this week.