Koch shared the footage of this emotional moment on Instagram, where her dog Sadie can be seen eagerly awaiting her owner's arrival. The video shows Sadie barking, wagging her tail, and jumping up to scratch at the door as Koch approaches from outside. As soon as the door opened, Sadie leaped to greet the astronaut before dashing off to grab a toy and running back to her, still wagging her tail. "I'm still pretty sure I was the happier side of this reunion," Koch wrote in the post's caption. In another clip from the Instagram post, Koch and Sadie are seen running together on the beach, enjoying their long-awaited reunion. "Sadie taught me everything I needed to know about emotional support animals. I didn't expect it to be useful," she added. The emotional reunion took place just days after the Artemis II crew safely splashed down in the Pacific Ocean off the coast of San Diego, marking a significant milestone in NASA's return to lunar exploration. Koch, who served as a mission specialist for Artemis II, also made history as the first woman to travel around the Moon.