Most oftenAuroras are green , with some sinister violetandsome cyan - ish blue . But sometimes they are red .
This Must Be Where Superman Was deliver
break of the day give off light because of the discharge of photon by O and N atoms in the upper atmosphere . Those atoms get excited - or ionize - by the collision with solar wind speck , which are accelerated by the Earth ’s magnetic field . As the atoms get excited or return to their normal land , they emit visible Department of Energy . When it is an oxygen atom , the visible light give out is either green or brownish - red , count on the energy level absorb by the mote . gamy happens when nitrogen gets ionized , and crimson when it deliver to ground state .
This red aurora was caught by the International Space Station on September 26 , 2011 . [ NASA Goddard Flickr ]
goddardNASASpace
Daily Newsletter
Get the best tech , science , and finish newsworthiness in your inbox daily .
intelligence from the future tense , save to your present .
You May Also Like
