In Photos: Expedition 51 Mission to the Space Station
Takin' a Break
Inside the Unity module, Expedition crewmembers Fyodor Yuchikhin, on the left, and Jack Fischer take a mealtime break.
Work on the ISS
Astronaut Thomas Pesquet of the European Space Agency poses for a picture while working inside the Columbus laboratory module.
In a Mighty Grip
The Canadarm2 robotic arm grasps the Orbital ATK Cygnus resupply ship in preparation to install it on the ISS's Unity module on April 22, 2017.
Oranges, Apples and More
Inside the Unity module, Expedition 51 crewmembers — from the left, Flight Engineers Oleg Novitskiy, Fyodor Yurchikhin and Jack Fischer and Commander Peggy Whitson — eat together.
Strange Events Afoot
A portion liquid from NASA astronaut Jack Fischer's drink separates, turning into a floating sphere in the microgravity aboard the ISS.
Heading Up and Away
On April 17, 2017 the Soyuz MS-04 sits on the launch pad with the gantry arms secured around it. The rocket is scheduled to launch from the Baikonur Cosmodrome in Kazakhstan on April 20, carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA to the ISS for their four and a half month mission.
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Christine Lunsford joined the Space.com team in 2010 as a freelance producer and later became a contributing writer, covering astrophotography images, astronomy photos and amazing space galleries and more. During her more than 10 years with Space.com, oversaw the site's monthly skywatching updates and produced overnight features and stories on the latest space discoveries. She enjoys learning about subjects of all kinds.