Over the course of his five missions he logged more than 1,211 hours and 21.5 million miles in space.

He logged a total of 295 hours and 15 minutes in space.

A chief difficulty, every day Glen logged in space, was trying to find ways to look busy.

With the completion of this mission, he logged over 119 hours in space.

During this flight, Harris logged over 239 hours and 4,164,183 miles in space.

Morukov logged 11 days, 19 hours, and 10 minutes in space.

She had logged similar time in space, but women are not similarly affected, and remain fertile.

He logged 746 hours in space and commanded three missions.

He flew 310 orbits, and logged 468 hours in space.

He has logged more than 98 hours in space.