Assertion: aurora borealis | /r/HasProperty | the result of electrons
Facets:
Source sentences:
text: The Aurora Borealis (Northern Lights) and Aurora Australis (Southern Lights) are the result of electrons colliding with the upper reaches of Earth’s atmosphere.
text: Northern lights, or aurora borealis, is the result of electrons colliding with the upper reaches of Earth's atmosphere.
text: The aurora borealis and aurora australis are the result of electrons colliding roughly 50 to 300 miles above the Earth’s surface, guided by Earth’s magnetic field to form two ovals roughly centered at the globe’s magnetic poles.