Traveling In Space Changes the Human Body in Some Very Surprising Ways Prepare for a swelled head, shriveled legs and a smaller heart. By Sissi Cao
International Space Station Celebrates 20 Years of Human Residence: 10 Historic Facts Since 2000, the ISS has hosted 241 astronauts, including 7 tourists. By Sissi Cao
7 Self-Isolation Tips From Scott Kelly, the NASA Astronaut Who Lived a Year in Space Scott Kelly lived on the International Space Station for a year between 2015 and 2016. By Sissi Cao