With only two crew aboard, there's some limited research taking place. But most of the crew's time is spent basically maintaining the station so a third crew member gives 33 percent more time and most of that time will be spent on research.  -   John Logsdon     Quotes
With only two crew aboard, there's some limited research taking place. But most of the crew's time is spent basically maintaining the station so a third crew member gives 33 percent more time and most of that time will be spent on research. John Logsdon