Scientists around the world will be watching closely as three eruptions from the Sun reach the Earth today.
These "coronal mass ejections" will slam into the Earth's magnetic shield.
The waves of charged solar particles are the result of three solar flares directed at Earth in recent days.The biggest flares can disrupt technology, including power grids and communications systems.
The northern lights (Aurora Borealis) may also be visible further south than is normal -- including from Northern Ireland. But cloudy conditions could mar views of any aurorae.