Liquid Oxygen Tanking Up Next
The next major countdown milestone is the loading of liquid oxygen, or LOX, into the rocket’s first stage. LOX is chilled to a very cold minus-297 degrees, making it a cryogenic propellant. NASA Launch Manager Tim Dunn polled his team and received the “go” to start this process a few minutes from now. ULA Launch Conductor Ward Johansen will check in with his team members momentarily to verify they’re ready to begin.
