A large fireball streaked across the Midwest Tuesday night. People from Tennessee to Michigan could see it, but it wasn’t a comet. Experts think it was a Russian SPY satellite that launched last month and fell out of orbit.
In other space news: NASA posted a futuristic, CGI video about space tourism, showing people kayaking on one of Saturn’s moons . . . A team of astrophysicists think our entire solar system might be encased in a massive cosmic tunnel that’s invisible to the naked eye . . . And scientists who study Uranus say yes, they’re sick of all the jokes.