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28 Apr 2026, 16:50
Why Weight Changes but Mass Does Not
A few weeks ago, NASA’s Artemis II mission launched four astronauts on a crewed lunar flyby, then returned safely to Earth after nearly 10 days. NASA describes the mission as a free-return journey around the Moon, using the gravity of the Earth and Moon to help guide the spacecraft home. Reuters also reported the launch as the first crewed lunar mission...