May 12 (UPI) -- NASA will host a live Twitch event Tuesday to help "global creators" of all ages design a plush mascot that will indicate zero gravity, when Artemis II astronauts take flight next year around the moon. NASA's livestream will promote its ongoing Moon Mascot Challenge and allow viewers to collaborate in real-time with an artist as they create a sample zero gravity indicator. Zero gravity indicators are small, plush items or stuffed animals, that are released inside the capsule to