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NASA

Return Window

As NASA’s Artemis II mission prepares for its high-speed re-entry and scheduled splashdown in the Pacific off San Diego, it marks more than the end of a test flight.

Return Trajectory

The launch of Artemis II is being celebrated as a technological milestone, but its deeper significance lies elsewhere.

4 of Uranus’ large moons may hold water: NASA

NASA scientists have found that four of Uranus' largest moons likely contain an ocean layer between their cores and icy crusts, which suggests that these hold oceans that could be dozens of miles deep.