A waterless, edible toothpaste created by a businessman for his critically ill father was sent to the International Space Station (ISS) this month, fulfilling a long-held dream of the inventor ...

Four zebrafish spent 43 days in orbit aboard the Tiangong space station, breaking records and advancing space biology. In ...

but each time some air would eventually work its way into the toothpaste which would immediately fill the remaining space in the tube with air rather than toothpaste. While not completely ...