From CTV News:

The Associated Press

Date: Tuesday May. 31, 2011 6:23 AM ET

CAPE CANAVERAL, Fla. — Their work in orbit complete, Endeavour's six astronauts on Tuesday checked the systems they need to bring NASA's second-to-last space shuttle flight to a close.

Commander Mark Kelly and his crew aimed for a landing in the pre-dawn hours of Wednesday.

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Astronauts get set to land Endeavour one last time - CTV News