Contrary to a popular theory that icy comets or asteroids delivered water to a dry newborn Earth, the planet itself may have produced its earliest water supply, a new study suggests.
NASA’s Psyche probe will launch to a metal asteroid on Oct. 12 — and scientists are sneaking a peek at the target
The James Webb Space Telescope and the now-retired SOFIA telescope, impressive as they may be, have hit their limits when it comes to studying Psyche.