SpaceX's Starship rocket is made of stainless steel. SpaceX Starship's mostly-silver appearance comes from a type of non-corrosive alloy called 300-series stainless steel.

The launch of a 400-foot-tall (122 meters) rocket won't seem like a novelty for much longer. SpaceX's giant Starship vehicle lifted off for the third time ever today (March 14) on an ambitious ...