613K views · 9.1K reactions | An incredible cosmic blast! 勞 Astronomers believe this explosion, SN 2015F, was triggered by the collision of a white dwarf and a Sun-like star in the NGC 2442 galaxy. While the actual supernova lit up 80 million years ago, its light has only recently reached Earth, allowing us to witness this ancient event.  Credit: Changsu Choi & Myungshin Im (Seoul National University) | The Galactic Void | Facebook

147K views · 1K reactions | Fossils found around the world suggest that multi-cellular life was not only present before the Cambrian Explosion, it was much more elaborate and diverse than anyone thought. This is the story of the sudden burst of diversity that marked the dawn of truly complex life on our planet. | Eons • PBS | Facebook