Relativity Space attempts third launch of 3D-printed rocket.

Relativity Space is set to launch its 3D-printed Terran 1 rocket, flying without a customer payload, from Cape Canaveral Space Force Station in Florida during a three-hour window that opens at 10 p.m. EDT on March 22. The rocket will fly an eastern trajectory over the Atlantic Ocean before separating from its second stage, which will then fire and attempt to achieve Earth orbit. If successful, this will mark the first 3D-printed rocket launch and the first time a methane-powered vehicle launches from Cape Canaveral.