Space Kids explores the infinite wonders of our universe and answers the big questions. Mixing amazing NASA archive footage with cool animation, Space Kids gives curious kids the ABC's of outer space.

This undated video grab shows Shenzhou-19 astronauts sending their Spring Festival greetings from China's Tiangong space station. Shenzhou-19 astronauts Cai Xuzhe, Song Lingdong and Wang Haoze ...