Live Q+A with Astronaut Don Pettit 🧑‍🚀    Astro_Pettit returned to Earth on April 19, 2025, after a 220-day stay on the International Space Station (ISS).     During his time aboard the ISS, Pettit conducted research, advanced technologies, explored plant growth, and investigated fire behavior in microgravity, all contributing to future space missions. He also used his surroundings aboard station to conduct unique experiments in his spare time and captivate the public with his photography.    Now, he's answering your questions.    Credit: NASA    #NASA #Space #ISS #Astronaut #SpaceStation #Science