NASA on Instagram: ""Autumn is a second spring when every leaf is a flower." Sept. 22 is the fall equinox, when autumn begins in the Northern Hemisphere, spring begins in the Southern Hemisphere, and...

www.instagram.com/nasa/p/DdmGY... 94K likes, 323 comments - nasa on September 22, 2026: ""Autumn is a second spring when every leaf is a flower." Sept. 22 is the fall equinox, when autumn begins in the Northern Hemisphere, spring beg...