Exciting new findings reveal that WASP-121b, a blazing-hot giant planet, may have formed far from its star in a colder, ice-rich region—before migrating inward to its current extreme orbit. Chemical f ...

Astrobotic's Peregrine moon lander that suffered a propulsion system anomaly shortly after separation from its Vulcan Centaur ...

Watch as the International Space Station takes shape in this time-lapsed NASA animation of its decade-long assembly, which began in 1998. Also, see a time-lapsed flyaround of the orbital outpost ...

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