Northern lights (aurora borealis): What they are & how to see them | Space
What causes the different shapes and colours of the aurora? | BBC Sky at Night Magazine
Aurora - Wikipedia
Why the rare 'blood aurora' inspires awe – and foreboding | Physics | The Guardian
The Vivid Lights: What Causes the Colour of the Aurora? | AuroraWatch UK
Tracking the Earth's magnetic field in Northern Lights
The Colors of the Aurora (U.S. National Park Service)
What Causes the Northern Lights? | Aurora Borealis & Australis | The Old Farmer's Almanac
10 Best Spots on Earth to Watch the Auroras | HowStuffWorks
What causes the Northern Lights? The science behind the phenomenon. | Hurtigruten
Rare Red Auroras | Spaceweather.com
Auroras: Why are they different colors?
The 1,400-Year-Old Red Aurora Mystery Has Finally Been Solved
Solar Storm Causes Neon-Pink Northern Lights to Fill the Sky
Aurora Borealis Colors Explained - AURORA live
Auroras and where to spot them - Curious
What causes colour difference in auroras? - Quora
What Causes Auroras (and where you should see them) - YouTube
A Hole In The Sun's Atmosphere Is Causing Dazzling Aurora You Can Watch Live
Rare Red Auroras
Why the rare 'blood aurora' inspires awe – and foreboding | Physics | The Guardian
colors
The Colors of the Aurora (U.S. National Park Service)
Will you see colors in the aurora? | EarthSky
The Vivid Lights: What Causes the Colour of the Aurora? | AuroraWatch UK
