Proposed solutions to the maintenance problem include improving parts to make them last longer, simplifying them for ease of robotic servicing, performing several astronaut chores at one time and removing nonessential systems so there would be fewer potential failure points.
Measurements and experiments will be carried out to explore questions like: how well do astronauts perform key tasks over time?
It'll be launched alongside other scientific experiments to be performed by astronauts on board the station in collaboration with the ISS US National Lab.
For a number of reasons, manipulative tending of such payloads and the servicing of Space Station system elements cannot be completely performed by astronauts.
So far, studies performed on astronauts that return from extended periods of time in space show alterations in their physiology from their muscle strength down to epigenetic changes in their DNA.
It may also have something to do with an experiment, performed by astronauts on a space station to save an energy-strapped Earth, which unleashes intergalactic beasties in the past, present and future.
The astronauts — Peggy A. Whitson, the station commander, and Daniel M. Tani, a flight engineer — said during a NASA news conference televised from space that they would do the spacewalk, which would have been performed by astronauts from the shuttle Atlantis if it had taken off on schedule last week.
In addition to being a direct threat to astronauts and spacecraft, upon impact with the exterior surface of a space vehicle, these highly energetic MMOD particles can create cut and puncture hazards for astronauts performing extra-vehicular activities (EVA).
Concerns about the biological effects on humans of this highly complex natural radiation field are increasing due to higher amount of astronauts performing long-duration missions onboard the ISS and especially if looking into planned future manned missions to Mars.
In outer space, Hollywood has informed us, people run the risk of going a little cuckoo, and one of the best ways to stave off an Event Horizon scenario (or, more mundanely, to simply keep astronauts performing at their best) may be to ensure they all get some serious shut-eye.
