Glasses. users can transition between the two settings thanks to the liquid crystal lenses. they have tiny electronic controls. i never dreamed that i could become an astronaut. i'm talking to kayla barron... ..oneātime resident of the international space station and now part of the artemis crew, the team who are preparing to go back to the moon. first time i looked out the window of our capsule... i6 sunrises and sunsets each day over our beautiful planet, really fundamentally feeling this interconnectedness.