The mascot is available for pre-order for $24.99. Credit: NASA Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. It was understandably only a matter of time. Rise , the Artemis II crew’s ridiculously adorable zero-gravity indicator, is now available for purchase. On the NASA Exchange website , you can pre-order your own diminutive plushie for $24.99 plus shipping, along with other Artemis goodies including stickers, magnets, hoodies, and more. Patience is a virtue, however. Due to an “extended production time,” NASA is warning collectors that their own, personal Rise may take up to eight weeks to ship. Zero-gravity indicators—usually a stuffed animal or something similar—have accompanied both U.S. astronauts and Russian cosmonauts into space since the 1960s. More symbolic than technical, the untethered objects mark a crew’s passage beyond Earth’s gravity into space.…