Vast Fragments of an Alien World Could Be Buried Deep Within Earth Itself

Saturn’s Spring Witnessed Up Close by an Emissary From Earth

NASA's Ingenuity helicopter is carrying a small piece of aviation history. Underneath the helicopter's solar panel is a stamp-sized piece of fabric. It was a part of the wing covering on the Wright brothers’ aircraft that took the first powered, controlled flight on Earth on Dec. 17, 1903.

World’s First Cities Collapsed due to Overpopulation and Climate Change 4,000 years ago