Period. The are russians have flown ons. Several yearlong missions. Its but if we look at the tools wih weve got today we can see if ht theres anything in the human system, to see if there is that something that degrades that hasnt reached study grade in terms of human degradation in keeping humans alive. How important is it to simulate a mars mission in lower earth orbit that way, and how close do you have to make it to a real mars mission to be a ma value . Do you build i n the to communication delay, do you block the windows, so they dont get to look at earth . How do you design Something Like that . Its interesting, we talked o about that. We do some things now, we do o were doing a lot of procedures, now aboard the station that are autonomous. Where the crews do the operatioe without any ground involvement. That was geared specifically do towards the mars environment where the time delay doesnt it. Allow the ground team to oesnt interact with the crew. So were doing those. He we t