NASA Administrator Jared Isaacman told NBC's Lester Holt that lessons from the Artemis II moon mission are informing plans to build d on the lunar surface.

While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of looks like a giant reptile had shed its skin across the planet’s surface. The rover’s recent find adds to the long list of weird and eerie images of the alien world.