Most astronauts face a muscle loss of over 20 per cent after spending just two weeks in space. In longer missions, ranging from three to six weeks, the muscle mass drops down to even 30 per cent.

The next four people to launch to the International Space Station have arrived at their launch site.

Yoga: India's Space Medicine One of the unique aspects of India's astronaut training program is the integration of yoga. "Yoga is our Brahmastra," says Dr. Selvamurthy.

UCF College of Medicine scientists were busy processing health samples from Axiom-4 astronauts to study the effects of space travel on the human body.

The first astronauts in more than 40 years from India, Poland and Hungary have arrived at the International Space Station, ferried there by SpaceX on a private flight.

Whitson, a retired NASA astronaut, is the most experienced American space flier, with 695 days and six hours and 48 minutes in orbit during five spaceflights — three for NASA and two for Axiom ...