noun (plural auroras or aurorae /ôˈrôrē/)
The effect is caused by the interaction of charged particles from the sun with atoms in the upper atmosphere. In northern and southern regions it is respectively called aurora borealis or Northern Lights and aurora australis or Southern Lights
- The Hubble Space Telescope has spotted auroras near the poles of both Saturn and Jupiter.
- Gaps in the magnetosphere also allow for one of Earth's most beautiful, eerie phenomena: the aurora borealis, or northern lights.
- Bound to the Earth, our only naturally occurring experience with space weather comes from what we can see with our eyes: eclipses, comets, auroras, and sunspots.
late Middle English (sense 2): from Latin, 'dawn, goddess of the dawn'. Sense 1 dates from the early 18th century.
- More example sentences
- Nevertheless, the potential exists for periods of strong auroral storm conditions developing during the next several days (at least).
- There was an exceptional auroral glow over the entire sky.
- Severe solar weather is often heralded by dramatic auroral displays, northern and southern lights, and magnetic storms that occasionally affect satellites, radio communications and power systems.