Virgin Galactic, headed by billionaire Richard Branson, plans to launch the first mass-commercial space flight in 2022.

These endeavors signal the space industry’s shift from the government to the private sector.

“There’s a lot of reasons for this.

One of them is cost.

… We’ve seen public agencies likeNASAstart to utilize commercial technologies and leverage those to get to space.”

One of the most notable examples is SpaceX.