noun
- plural of aurora; natural light displays in the sky, especially near the polar regions, caused by the interaction of solar wind with Earth’s magnetic field
Usage: scientific
Examples
- The auroras were visible from Alaska last night.
- Scientists study auroras to understand solar activity.
- Green and red auroras danced across the Arctic sky.
- Auroras occur more frequently during periods of high solar activity.
- Tourists travel to northern Canada hoping to see auroras.
- The space weather forecast predicted strong auroras this week.