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ISS SPACEWALK TO REPLACE BATTERIES, July 21, 2020, Earth orbit, 7:35 am ET

(NASA TV coverage begins 6:00 am ET)

NASA astronauts Chris Cassidy and Bob Behnken will make a fourth spacewalk to replace batteries on the outside of the International Space Station on July 21, 2020.

NASA TV coverage begins at 6:00 am ET.  The spacewalk will begin at 7:35 am ET and last as many as 7 hours.


July 21, 2020
6:00 am - 11:00 pm