It's something you might find inside James Bond's Aston Martin: A gun that only lets a specific person use it.
Driving the news: It's whatBiofire Technologies, a company based in Broomfield, Colorado, on Thursday said it created, launching the world's first biometric handgun, The Biofire Smart Gun, according to a company statement.
A European spacecraft designed to study Jupiter and three of its most intriguing moons is now expected to attempt a launch on Friday after poor weather postponed the mission a day.
Why it matters: The JUICE mission will focus on studying the moons Callisto, Europa and Ganymede, all of which might be good places to search for life in the solar system. It will alsomark the first time a human-made spacecraft has orbited a moon other than our own.