Image caption, Coloured scanning electron ... They will usually just pass right through it. Some of the effects that radiation has on a human body are shown below. Eyes High doses can cause ...

When astronauts Sunita Williams and Butch Wilmore returned to Earth after an unexpected nine-month stay aboard the ...

Scientists are learning what short and long-duration space missions do to human ... higher radiation exposure, space-compatible diet, and other facts of life in orbit affected Scott's body in ...

NASA astronauts are returning to Earth after nine months in space. Experts have said a prolonged period in space can come ...

Some of the effects that radiation has on a human body are shown below. Eyes High doses can cause cataracts. Thyroid Radioactive iodine can build up and cause cancer, particularly during growth.

NASA astronauts Butch Wilmore and Suni Williams have returned to Earth after nine months in space, and the before-and-after ...