In all, how many space shuttles were built by nasa?

Their were exactly 31 shuttles made and i know this because my dad works at NASA.

NASA has built six different space shuttles.

Challenger, Enterprise, Columbia, Discovery, Atlantis, and Endeavor.

Only 5 of them were actually space worthy.

4 of them are still around today in space museums, the Enterprise, Discovery, Atlantis and Endeavor.

Challenger exploded after launch, killing all seven on board.

The Columbia also exploded during reentry, killing all seven on board.

Hope this helps :)

Have a great day!

your mom

now im just trying to get this to 20 characters hope it works hey it works hope it okay bye