Grumpy Old Geeks Products X-37B Product X-37B 2 mentions in 1 episode The X-37B is an Air Force space plane that the hosts say returned after two years in space. Mentions 209: Smalt & Pppr May 15, 2017 1:30:30 The X-37B space plane has returned after two years of a secret mission. 1:31:02 Two years straight up there. Just landed last week.