Meet Christina Koch and Jessica Meir — the two NASA astronauts who are going to walk for hours in space

• Christina Koch and Jessica Meir will go on space walk either on October 17 or October 18 at 7.50 am ET.
  
• Koch and Meir will replace faulty battery part during the time they spend outside the space station.
  
• This is Koch’s fourth space walk and Meir’s first. However, this is the first time two women will venture out of the International Space Station (ISS) without a male counterpart.
  

The National Aeronautics and Space Administration is finally set create history. Two NASA Astronauts Christina Koch and Jessica Meir will go on the first all-female spacewalk on either October 17 or October 18 at 7.50am ET.

Koch and Meir will be replacing a faulty battery part during the six hours they spend outside the International Space Station(ISS).


Both Koch and Meir are living in NASA's International Space Station - a habitable satellite in low Earth orbit — conducting experiments in biology, human biology, physics, astronomy, meteorology and other fields.