NASA is getting ready to launch a spacecraft to visit a one of a kind target: the famous Psyche, a metal asteroid 140 miles across which has been claimed to be worth quintillions of dollars. NASA isn… [+1332 chars]
The dusty faces of the moon and Mars conceal unseen hazards for future explorers. Areas of highly oxidizing material could be sufficiently reactive that they would produce chemical burns on astronaut… [+5108 chars]
A rubber duck. A spinning top. A pair of pancakes. These are just a few of the shapes astronomers have observed across the solar system. While planets and some moons are almost perfectly spherical, … [+3288 chars]