Scientists have developed a hi-tech sleeping bag that could prevent the vision problems that some astronauts experience while living in space.
In zero-gravity, fluids float into the head and squash the eyeball over time.
It's regarded as one of the riskiest medical problems affecting astronauts, with some experts concerned it could compromise missions to Mars.
The sleeping bag sucks fluid out of the head and towards the feet, countering the pressure build-up.
In zero-gravity, fluids float into the head and squash the eyeball over time.
It's regarded as one of the riskiest medical problems affecting astronauts, with some experts concerned it could compromise missions to Mars.
The sleeping bag sucks fluid out of the head and towards the feet, countering the pressure build-up.
