This is dried sap oozing from the tip of a tree branch where a leaf bud is forming! I was looking for droplets of water and noticed tiny, fiery glowing from the end of a few of the branches and took a closer look. The light looks like it's coming from within! I've never seen this before, such a pretty surprise!

Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the general theory of relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics and the most influential physicist of the 20th century. While best known for his mass–energy equivalence formula E = mc2 (which has been dubbed "the world's most famous equation"), he received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect". The latter was pivotal in establishing quantum theory. Wikipedia: Albert Einstein