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The life expectancy of people going to Mars may be decreased by the higher level of radiation that they receive.

One of the major problems with long-term deep space human flight is the requirement for radiation shielding.

There are allowable limits for radiation going - I mean there's radiation all around us. There's radiation from your television set. There's radiation from your computer. There's radiation actually occurring in the ground.

Radiation is relentless: my protocol is five days a week, 33 sessions altogether.

The worst situation with radiation escaping is if you are downwind from it. You could virtually be on one side and not affected by the radiation. If you're on the other side and you're downwind from it, you are going to be affected.

I am now almost certain that we need more radiation for better health.

It is likely that we need more radiation to improve our longevity.

In some cases radiation reduces the incidence of cancer.

The notion that the levels of radiation would be damaging to human life is preposterous. It's simply not true. It is a political claim more than it is a scientific claim. THAAD has been a thoroughly tested system, and it has been extremely effective.

When I entered the field in July 1958 I believed what they told me about radiation risks. I spent much effort reducing the dose to patients in radiology.