NASA is working on a lithium-plasma electric thruster that uses roughly 90% less fuel than chemical rockets. Can this new technology help us colonize Mars?

NASA’s Hubble telescope captured an “extraordinarily” rare moment of a comet exploding into fragments, the space agency said. The comet K1, whose full name is C/2025 K1 (ATLAS), was caught fragmenting into at least four pieces between Nov. 8 and Nov ...