How the asteroid that killed dinosaurs changed Earth

Universe unveiled on Instagram: "The asteroid that ended the dinosaurs was surprisingly small—about 10–15 kilometers wide, roughly the size of a large city. Known as the Chicxulub impactor, it struck Earth at tens of thousands of kilometers per hour, releasing energy equal to hundreds of millions of nuclear bombs. The collision blasted a crater 150–200 kilometers wide in today’s Yucatán Peninsula, dwarfing the asteroid itself. The true devastation came afterward. Global firestorms, massive tsuna