Story highlights Astronauts can temporarily gain 2 inches in height but suffer muscle loss and back pain More countermeasures involving exercise may help mitigate pain...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. CNN — The first photo...
Story highlights Africa will launch its first private satellite into space It’s been built by schoolgirls CNN — They may be teenagers, but 17-year-old Brittany...
