Astronauts Going to Mars Will Absorb Crazy Amounts of Radiation. Now We Know How Much

Space.com ^ | Sept 20, 2018 | Meghan Bartels, Space.com Senior Writer

[Hot Tabasco]

So what protected the Apollo astronauts in not only their flight to the moon but their walk as well?

[a fool in paradise]

Cosmic cancer

[a fool in paradise]

Mitt Romney says you’ll need to find your own pair

[Seaplaner]

LOL!

[minnesota_bound]

What is a “sievert”?
I only understand Rems and Rads!
Don’t get me started on Joules!

[Paladin2]

"The sievert is intended to represent the stochastic health risk, which for radiation dose assessment is defined as the probability of radiation-induced cancer and genetic damage.

One sievert carries with it a 5.5% chance of eventually developing cancer based on the linear no-threshold model.[1][2]"

So here you have it....

[minnesota_bound]

So like a global warming weather prediction?

[dangus]

Damn Rads. Always blaming it on the Joules!

[Paladin2]

I suspect it is WAY better than Climate “Science”, but obviously still a statistical science.

[Rebelbase]

You think Mitt Romney would give his up?

[Rebelbase]

I remember that. Almost choked while getting my eyes poked out.

[JustaTech]

Radiation exposure is cumulative over time.

The quickest solution is to make the trip in 10 minutes or less.

[Mr. Blond]

Space is a harsh mistress. Better start the Astartes program.

[centermass_socrates]

So after the water is used as a radiation shield, are you saying its safe to drink?

Probably not

[FLT-bird]

Obviously we will need to improve shielding on spacecraft to protect astronauts for interplanetary journeys. One idea is to use the water and fuel astronauts will need in a thin internal layer to shield them - that way you don’t have to blast heavy shielding into orbit which would be prohibitively expensive to do.

[Viking2002]

Hey, the way I see it, bonus funbag!!!!

[Squeako]

I’d imagine they’ve already considered generating some sort of artificial electromagnetic field around the spacecraft.

[logi_cal869]

I have been deriding this fantasy of a manned mission to Mars since day 1 for this very reason.

Vindicated (finally).

Musk cheerleaders: Reality check.

[Vince Ferrer]

So what protected the Apollo astronauts in not only their flight to the moon but their walk as well?

Not much, except that they were only outside our magnetosphere for less than a few days. They accepted that they were going to receive higher radiation, and were gambling that there would be no spikes in radiation from solar activity.

[Ozark Tom]

http://www.dartmouth.edu/~sshepherd/research/Shielding/