Long duration space flight
The number of astronauts who have been in space for a long time is steadily increasing. The number people who have spent more than a year in space currently numbers 52. [1]
The longest time spent in space is currently 878 days, 11 hours, & 29 minutes, by Gennadi Ivanovich Padalka of the USSR.
The radiation received in the International Space Station is 144 milliSievert / year. This is about 28% of the radiation dose of a 2.5 year Mars mission (assuming a mission where the total radiation exposure is 520 mSv). See the Mars Direct Mission, described in the "Case for Mars", by Robert Zubrin.
This page is a stub, and can be expanded.
References:
- ↑ http://www.spacefacts.de/english/e_tis.htm%7CAstronauts & Cosmonauts Sorted by Time In Space
