The first thing that comes to mind when I read that headline is..."but why?"
A couple of days ago we got a good look at a "flying car" backed by Google's Larry Page, and now Bloomberg reports that Sergey Brin has a project too -- it's a zeppelin. The airship "which isn't an Alphabet project" is being built in a leased hangar at the NASA Ames Research Center, although it's unclear if there are any plans to make a business out of it.