WATCH LIVE: NASA astronauts take first spacewalk of 2019

NASA astronauts Anne McClain and Tyler "Nick" Hague are scheduled to conduct a spacewalk Friday morning to replace old batteries on the International Space Station's solar arrays.

This is the first spacewalk for both astronauts.The pair are expected to be outside the orbiting laboratory for more than six hours.

According to NASA, spacewalks allow astronauts to work on the outside of their spacecraft while in space, conduct science experiments as well as test out any new equipment. Spacewalks outside of the space station typically last anywhere from five to eight hours.  

Since 1998, there have been 213 spacewalks at the space station. The U.S. has seen 160 spacewalks in U.S. spacesuits, while Russia has had 53 spacewalks in Russian spacesuits.

McClain is also scheduled for the first all-female spacewalk set for March 29. 

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