1.   If NASA ever launches astronauts to Mars or other planets, their spaceship will most likely carry special shielding against mass ejections or other space radiation.

2.   He said Russian doctors have restricted him to missions of one month or less to limit his exposure to space radiation.

3.   Space radiation could cause cancer.

4.   The cosmonauts also collected samples of materials placed outside the station to check the impact of space radiation and attach new items to continue the experiments.

5.   The cosmonauts also plan to collect samples of materials placed outside the station to check the impact of space radiation and attach new items to continue the experiments.

6.   They also installed a device to measure space radiation and removed samples of cosmic dust and micrometeorites.

7.   U.S. astronaut David Wolf was conducting some scientific research, including experiments in biotechnology and measurements of space radiation on Tuesday.

8.   The ozone layer in the upper atmosphere protects the Earth from dangerous space radiation.