Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. How do astronauts go to the bathroom in space? – ...

(NEXSTAR) – NASA’s Artemis II mission successfully launched from Florida’s Kennedy Space Center on Wednesday, marking a major milestone in humans returning to the moon. Artemis II is historic in many ...