NASA plans to launch its first nuclear-powered interplanetary spacecraft in 2028, a probe called Space Reactor-1 Freedom that will carry a fleet of tiny helicopters to Mars.
This is a cool fact to impress your friends. The length of a day on Earth changes constantly, nudged by the Moon's gravitational pull, shifting winds in the atmosphere, and slow churning movements deep within the planet. It always has. Day length is, in a sense, a living measurement and one that ebbs and flows with the rhythms of a restless, dynamic world. But something new is happening.
