And if I may interject one more... my all-time favorite... the Aurora Borealis of 23 March 1969. This was unexpected; I was out to shoot the crescent moon and initially I thought some cirrus clouds were creeping in... until they turned pink and red, and were streaming about in a manner unlike clouds... herein I realized I'm seeing my first-ever aurora.
Fortunately, I had High-Speed Ektachrome slide-film in my camera. Abandoned lunar photography and mounted camera on tripod with 50mm F/1.8 lens and shot a bunch of 20-sec exposures... east, west, overhead. Had Kodak push from ASA160 to 400. This was the most scenic pic of the bunch... looking west, Orion at left (setting into the pine trees) and the overexposed crescent moon at right. 51 years later, still a memorable eve.