Elon Musk's photos show SpaceX rolling out its massive rocket booster for Starship - CNBC

The company rolled out Super Heavy Booster 4 on Tuesday, with Starship prototype 20 expected to launch on top.

SpaceX has been working rapidly to ready Starship and the Super Heavy booster for the orbital flight test, although a local environmental review by the Federal Aviation Administration needs to be completed before the launch happens.

The company is developing Starship to launch cargo and people on missions to the moon and Mars.