What causes colors of aurora?

The auroral lights' colors are determined by the spectra of gases in the Earth's atmosphere, and the height at which the most collisions take place. The strong yellow-to-green light that is most common is produced by collisions with oxygen at lower altitudes, between 100 and 300 km.

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Keeping this in consideration, why is aurora red?

Reds appear in the Aurora when solar particles react with Oxygen at higher altitudes, generally above 150 miles. At this height the Oxygen is less concentrated and is "excited" at a higher frequency or wavelength than the denser Oxygen lower down making reds visible. Do the Northern Lights happen every night? There is no official season since the Northern Lights are almost always present, day and night. Caused by charged particles from the sun hitting atoms in Earth's atmosphere and releasing photons, it's a process that happens constantly.

Subsequently, are auroras real?

Polar lights (aurora polaris) are a natural phenomenon found in both the northern and southern hemispheres that can be truly awe inspiring. Northern lights are also called by their scientific name, aurora borealis, and southern lights are called aurora australis. What colour is the aurora? Most of the auroral features are greenish-yellow, but sometimes the tall rays will turn red at their tops and along their lower edges. On rare occasions, sunlight will hit the top part of the auroral rays to create a faint blue color.

Also, what do northern lights symbolize?

The Northern Lights symbolize some of the teachings and practices of the First Nations people. One of these teachings, passed on from generation to generation, is the belief that Wataway are spirits of the ancestors celebrating life, reminding us that we are all part of creation. You can also ask why do northern lights look better on camera? Thus the human eye views the Northern Lights generally in "black & white." DSLR camera sensors don't have this limitation. The farther North your viewing location, the more colors you can actually see because the aurora is stronger.