Virgin Galactic (SPCE -5.47%) has been working on a Mach 3 aircraft for nearly three years with little news. But this is still one of the biggest potential growth markets for the company. So what's the latest? Travis Hoium gives an update on the Mach 3 aircraft in the video below. 

*Stock prices used were end-of-day prices of April 19, 2023. The video was published on April 19, 2023.