One-Year Mission

NASA and Russia launched a joint one year mission to the International Space Station. NASA's Scott Kelly and cosmonaut Mikhail Kornienko lifted off to the orbiting outpost on March 27, 2015, and landed 340 days later after just under a year in microgravity.

Latest Updates

Kelly and Kornienko to ISS

A Year in Space: The Science Behind the Epic Space Station Voyage

By Miriam Kramer published

Science experiments conducted on the International Space Station during the orbiting outpost's first yearlong mission could help open the door to deep space for NASA.

NASA's Scott Kelly

Astronaut Scott Kelly Will Test His Limits on Epic One-Year Space Mission

By Miriam Kramer published

One-Year Mission Portrait

One Year in Space: Epic Space Station Mission in Photos

By Space.com Staff published

NASA's Scott Kelly and cosmonaut Mikhail Kornienko will kick off the first yearlong International Space Station mission when they launch to the orbiting outpost on March 27, 2015.

Astronaut Scott Kelly with Cosmonauts Padalka and Kornienko

Astronaut and Cosmonaut to Launch on 1-Year Space Mission This Week

By Miriam Kramer published

The International Space Station flies above Earth in 2010. Two crewmembers will launch to the orbiting outpost on a one-year mission in March 2015.

1-Year Space Station Mission May Pave NASA's Way to Mars

By Miriam Kramer published

The first crew to embark on a yearlong International Space Station mission could help NASA get to Mars.

ISS Mockup

NASA to Preview Yearlong Space Station Mission Today: Watch It Live

By Miriam Kramer published

One-Year Mission Portrait

America's First One-Year Space Voyage Has Astronaut Excited

By Miriam Kramer published

A NASA astronaut is getting ready to be the first American to spend a continuous year in space, and he is excited.

Mark and Scott Kelly in their flight suits

NASA Picks 10 Experiments for Unprecedented Astronaut Twin Study (Video)

By Megan Gannon published

Scott and Mark Kelly, the only set of astronaut twins, are set to become test subjects in an unprecedented NASA investigation into how weightlessness impacts the human body.

Winklevoss Twins with Sir Richard Branson

Winklevoss Twins in Space: Not the 1st Identical Siblings to Leave Earth

By Tariq Malik published

NASA astronaut Scott Kelly floats in space.

NASA's Twin Astronauts Volunteer as Guinea Pigs for Space Science

By Elizabeth Howell published

Astronauts Mark Kelly, STS-134 Commander, and Scott Kelly, Expedition 26 Commander.

Twins In Space: NASA's Twin Astronauts Mark and Scott Kelly (Photos)

By Space.com Staff published

See photos of NASA's only pair of twin astronauts.

Sunlight glints off the International Space Station.

Astronauts Excited For First Yearlong Trip to International Space Station

By Stephanie Pappas published

A NASA astronaut and a Russian cosmonaut will spend a year in orbit.

NASA astronaut Scott Kelly (left), Expedition 26 commander, is reunited with his twin brother, Mark Kelly on March 17, 2011, following a flight back to Ellington Field, Houston from Kustanay, Kazakhstan. Scott Kelly landed in Kazakhstan on March 16 with h

Giffords' Astronaut Husband and His Twin Keep Personal Lives Private

By Space.com Staff published

Twin astronauts Mark and Scott Kelly are working to keep the public focused on their space missions, not their private lives.

NASA astronaut Scott Kelly (left), Expedition 26 commander, is reunited with his twin brother, Mark Kelly on March 17, 2011, following a flight back to Ellington Field, Houston from Kustanay, Kazakhstan. Scott Kelly landed in Kazakhstan on March 16 with h

NASA's Identical Twin Astronauts Reunite Between Spaceflights

By Denise Chow published

It was a family affair for two identical twin astronauts who were reunited on March 17.

Expedition 26 Commander Scott Kelly wears a blue wrist band that has a peace symbol, a heart and the word "Gabby" to show his love of his sister-in-law U.S. Rep. Gabrielle Giffords as he rest onboard a Russian Search and Rescue helicopter shortly after he

Giffords Wristband Worn by Her Husband's Astronaut Twin in Orbit

By Tariq Malik published

Astronaut Scott Kelly wore a turquoise wristband to honor sister-in-law Gabrielle Giffords.

Recovery crews attend to a Russian Soyuz TMA-01M spacecraft after it landed on the snowy, windy steppes of Kazakhstan in Central Asia on March 16, 2011. The Soyuz returned NASA astronaut Scott Kelly and Russian cosmonauts Oleg Skripochka and Alexander Kal

Soyuz Capsule Lands Safely With Space Station Crew

By Denise Chow published

Three space station crewmembers landed their Soyuz spacecraft in Kazakhstan today.

This photo of the International Space Station was snapped by an STS-133 crew member on the space shuttle Discovery on March 7, 2011.

Space Station Crew to Return to Earth Wednesday

By Denise Chow published

A Soyuz spacecraft carrying three station crewmembers undocks tonight and lands early Wed.

Congresswoman Gabrielle Giffords

Reports: Gabrielle Giffords Hopes to Attend Husband's Shuttle Launch

By Tariq Malik published

Injured Rep. Gabrielle Giffords plans to watch her husband launch on shuttle Endeavour on April 19.

Photos of loved ones and other inspiration adorn Congresswoman Giffords' hospital room.

Report: Wounded Rep. Giffords Speaks to Astronaut Brother-In-Law in Space

By Space.com Staff published

Wounded congresswoman Gabrielle Giffords is relearning how to speak after sustaining a traumatic brain injury from a bullet wound to the head in early January.

Photos of loved ones and other inspiration adorn Congresswoman Giffords' hospital room.

Private Life, Public Spotlight: Astronaut and Congresswoman’s Love Story

By Clara Moskowitz published

Recent events have cast an unprecedented public glimpse into the relationship of a spaceman and politician.