Extraterrestrial: What Life on International Space Station is Like

Astronaut Scott Kelly is photographed with oranges, lemons, and grapefruits floating around him in the International Space Station.

The International Space Station photographed by Expedition-56 crew members from a Soyuz spacecraft after undocking. NASA astronauts Andrew Feustel and Ricky Arnold and Roscosmos cosmonaut Oleg Artemyev flew around the orbiting laboratory to take pictures of the station before returning home after spending 197 days in space. The station is celebrating the 18th anniversary of continuous human presence on board and the 20th anniversary of the launch of the first section, Zarya, in November, 2018.

Spaceflight participant Anousheh Ansari holding a plant grown in the Zvezda Service Module of the International Space Station.

NASA astronaut Drew Feustel seemingly hanging off the International Space Station while conducting a spacewalk with fellow NASA astronaut Ricky Arnold (out of frame) on March 29, 2018. Feustel, like all spacewalkers, was safely tethered to the space station at all times during the 6h 10min spacewalk.

Russian cosmonaut Elena Serova while reading the EMER-1a emergency response book on board the ISS.

Japan Aerospace Exploration Agency (JAXA) Koichi Wakata, Expedition-38 Flight Engineer (FE), exercises on the Advanced Resistive Exercise Device (ARED) in Node 3.

The 6 member Expedition-54 crew posing for a light-hearted portrait inside the Japanese Kibo laboratory module on Feb. 18, 2018. Clockwise from the bottom are: Commander Alexander Misurkin of Roscosmos; NASA astronauts Mark Vande Hei and Joe Acaba; Roscosmos cosmonaut Anton Shkaplerov; astronaut Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA); NASA astronaut Scott Tingle.

A toy monkey on board the ISS.

Russian cosmonaut Sergey Ryazansky with a camera on board the ISS.

Astronauts watching a football match on board the ISS.

NASA astronaut Serena Aunon-Chancellor working on the Micro-11 Experiment at the Microgravity Science Glovebox.

Viewed from a window inside the cupola, the International Space Station's "window to the world," the Japanese Exploration Agency's H-II Transfer Vehicle-7 rendezvoused with the orbital complex after launching from the Tanegashima Space Center. At the time this image was taken on Oct. 11, 2018, the station was flying at an altitude of about 257 miles off the coast of Canada, above the Gulf of St. Lawrence.

The Unity module offers the perfect space for an out-of-this-world jam session with Expedition-55 crew members (from left) Drew Feustel of NASA, Oleg Artemyev from Roscosmos and NASA astronauts Ricky Arnold and Scott Tingle.

Preparing for a spacewalk.

Sunrise on board the ISS.

Expedition-36 Flight Engineer Karen Nyberg showing how to wash and rinse your hair in space.

The crews of STS-133 and the International Space Station eat a meal together in the Unity node. The crews eating are, from left, Steve Bowen, Nicole Stott, Steve Lindsey, Paolo Nespoli and Michael Barratt. Combined, the crews of the shuttle and station totalled 12 people.

European Space Agency (ESA) astronaut Paolo Nespoli, STS-120 mission specialist, resting in his sleeping bag in the Harmony node of the International Space Station while the Space Shuttle Discovery is docked at the station.