Iceland tells tourists it's like an alien planet. A NASA scientist agrees

Iceland is like Mars — if the Red Planet had hot tubs. That's the cheeky idea behind a new pitch from Iceland's tourism board, which says people don't need a spaceship to see otherworldly sights like red rocks, black sand and subglacial volcanoes. Plus, they note, oxygen is abundant in Iceland.

To drive home the message, they launched a promo video and a space billboard with the tagline, "Iceland. Better than space."

Space tourism has been for years now. But people