Cassandra Hatton, Sotheby's Vice President of Science and Natural History, emphasized the rarity of the find. "This is the largest piece of Mars we have ever found by a long shot," she said, according ...

NASA is planning to launch NISAR, a new first-of-its-kind satellite into space that will observe all of Earth’s land and ...

NASA’s Dragonfly rotorcraft lander is designed for flight on Saturn's moon Titan. See a "half-scale Dragonfly lander model" ...

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star, an unprecedented ...