Radiation at commercial-aircraft altitude can rise by roughly 40% to 60% when the Sun is less active, according to a new ...

What if the amount of radiation you encounter on a flight depends not just on how high you fly, but on what the Sun is doing?

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Radiation, used to treat half of all cancer patients, can be measured during treatment for the first time with precise 3D imaging developed at the University of Michigan. By capturing and amplifying ...

When the next astronaut to reach the moon walks on the lunar surface in 2024, she’ll face radiation levels 200 times higher than on Earth. While Apollo mission astronauts carried dosimeters to the ...

When the next astronaut to reach the moon walks on the lunar surface in 2024, she'll face radiation levels 200 times higher than on Earth. While Apollo mission astronauts carried dosimeters to the ...

Video above: NASA says everything has to go right to get to the moon by 2024When the next astronaut to reach the moon walks on the lunar surface in 2024, she'll face radiation levels 200 times higher ...