At the inventions competition, when Ron Popeil introduces Ogden Wernstrom, Fry is sitting in the audience with his normal red jacket on. In the closeup, he is in a black suit.
At the inventions competition Leela and Bender trade seats.
It's the year 3000, people go in and out of space all the time and millions of people are watching space all the time there is no way this garbage ball would have went unnoticed all this time.