The night sky will begin glowing with waves of pink, green, and purple lights as spectacular auroras hover over North America in the coming days.
Aurora borealis, also called the northern lights, is caused by charged particles from the sun getting trapped in Earth’s magnetic field.
To viewers on Earth, they look like dancing lights hundreds of kilometres up, displaying different colours at different altitudes.
The most common source of auroras is material ejected from the sun in coronal mass ejections (CMEs).
Earlier this week, space weather specialists noted solar flares and several CMEs, indicating moderate (G2) to strong (G3) geomagnetic storms were on the way. The National Oceanic and Atmospheric Administration predicted disturbances and aurora borealis over large swaths of North America….