X-37B mission: What to know about secret Space Force space plane launch this week Florida TodayUS Space Force to launch not-so-secret military spaceplane ABC NewsSecretive X37-B space plane to test quantum navigation system — scientists hope it will one day replace GPS Live ScienceX-37B is a secret military space plane. Pictures show what it looks like before, after launch yahoo.comUS Space Force prepares X-37B Mission 8 for launch spaceforce.mil
