A Big-Nosed Dinosaur and Ancient Time-Keeping

Everything new this week was old. Paleontologists in Utah discovered a cowlike species of dinosaur (about 65 million years old), and archaeologists in Scotland found what may be the world’s first lunar calendar (10,000 years old). Meanwhile, astronomers tell us that all of Earth’s gold was formed by ancient stars colliding (4.5 billion years ago) and that there is a moon orbiting Neptune we all somehow failed to notice (also quite old). Leer más.