Sun observers will be treated to some spectacular solar effects in the coming days as waves of particles from an enormous coronal mass ejection (CME) would pass Earth within three days. The solar phenomenon is called a geomagnetic storm, which is a normal event and would not directly harm humans.

Ahead of the solar maximum, some spectacular effects were seen on Wednesday at 2:09 p.m. AEST, but the coming geomagnetic storm would likely be relatively mild, but would still likely disrupt radio-based communication and navigation equipment such as radio stations, walkie-talkies and satellite-based GPS.

NASA said the CME left the sun at 900 km/s, and it could also pass by the Messenger spacecraft that orbited Mercury and the Juno spacecraft headed for Jupiter. To protect the agency's instruments, NASA would likely place their spacecraft into safe mode.

The solar shower could be seen in the northern and southern regions such as Canada, allowing photographers and sightseers to witness the geomagnetic storms that caused aurora borealis an australis.