[swang720]

A tragedy, and I wonder if being in space had anything to do with the development of her cancer. Astronauts must be bombarded by levels of radiation that people on Earth are not exposed to on a daily basis.

[dantheman]

Here's a good PDF about space radiation: htttp://spaceflight.nasa.gov/spacenews/factsheets/pdfs/radiation.pdf

[splat]

Fixed link: http://spaceflight.nasa.gov/spacenews/factsheets/pdfs/radiat...

[CamperBob2]

Sounds like they get blasted pretty hard, with the equivalent of several hundred chest X-rays over a 6-month tour.

[rdl]

A shuttle mission is at most 3-4 mSv/day, and depends on orbit. ISS is about 80 per 180 day mission. A whole-body CT is 10-12 mSv. Non-trivial, but not huge.

[codgercoder]

I suppose NASA has been keeping stats; I wonder what they look like.

[excuse-me]

Statistically unconvincing ?