Overview: While Americans are enjoying the images and audio sent from the Mars rover, "Perseverance," news about China's Mars rover swept around the world. China has been rapidly accelerating its space program, launching the first module of its new space station scheduled to be completed in 2022, while the U.S.-led International Space Station's intended lifespan is set to finish in 2024. We asked Dr. Michio Kaku how significant these developments are and the outlook of China's future space ambitions.