Image: View from space station
NASA
An astronaut aboard the International Space Station captured this incredible view of Earth's horizon on March 6, 2012. The image shows the southern lights, or aurora australis, on the right, and daybreak on the left.
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updated 3/20/2012 5:47:18 PM ET 2012-03-20T21:47:18

NASA is considering using the International Space Station to practice for a trip to Mars, officials said Tuesday.

The orbiting laboratory could provide a testing ground to study how human bodies react to long-term microgravity, which will be a feature of any months-long trip to the Red Planet.

"Clearly, in order to be able to explore beyond low-Earth orbit, we're going to have to stay in orbit for longer than six months," space station program manager Mike Suffredini said during a news conference.

Suffredini said NASA is exploring the possibility of setting up a mock journey to Mars aboard the space station, where astronauts would stay for longer than the usual six months, and would be subject to other conditions that such a trip would impose. [The 9 Coolest Mock Space Missions]

For example, as a spaceship traveled closer to the Red Planet, it would take more and more time to send and receive messages between the crew and the ground. The time delay between Earth and Mars can run from three to 22 minutes.

To study how this might affect operations, NASA is planning to try out other communication technologies, including instant messaging, that might work better than phone conversations.

"You can imagine if we had Capcom [the capsule communicator] calling up to the crew and there was a significant delay, it's more difficult to have a conversation," said Dina Contella, lead flight director for the space station's Expedition 32 mission coming up in July. "We're really just sort of laying the groundwork and getting some of these tools ready. We're working our way up to an eventual com delay experiment."

Contella said such a simulation could also involve setting up some activities and experiments to be more autonomous for the astronauts, so they would have to rely less on communicating with mission control.

While NASA is starting to work toward a practice run for the trip to Mars, space station managers don't know exactly when they plan to carry it out, Suffredini said.

"It won't be in the near future," he said. "It's probably not reasonable to expect us to be able to do this sooner than two or three years from now."

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The experiment won't be the first simulated Mars journey.

The European and Russian space agencies conducted an analog mission to our planetary neighbor in 2011 called Mars 500. This project put six volunteer "astronauts" inside a mock space capsule for 500 days to investigate the physical and psychological challenges of such a mission.

Additionally, other projects have sent participants to the desert, Antarctica and even deep under the ocean to simulate the experience of traveling through space.

You can follow Space.com assistant managing editor Clara Moskowitz on Twitter @ClaraMoskowitz. Follow Space.com for the latest in space science and exploration news on Twitter @Spacedotcomand on Facebook.

© 2013 Space.com. All rights reserved. More from Space.com.

Photos: Month in Space: January 2014

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  1. Southern stargazing

    Stars, galaxies and nebulas dot the skies over the European Southern Observatory's La Silla Paranal Observatory in Chile, in a picture released on Jan. 7. This image also shows three of the four movable units that feed light into the Very Large Telescope Interferometer, the world's most advanced optical instrument. Combining to form one larger telescope, they are greater than the sum of their parts: They reveal details that would otherwise be visible only through a telescope as large as the distance between them. (Y. Beletsky / ESO) Back to slideshow navigation
  2. A balloon's view

    Cameras captured the Grandville High School RoboDawgs' balloon floating through Earth's upper atmosphere during its ascent on Dec. 28, 2013. The Grandville RoboDawgs’ first winter balloon launch reached an estimated altitude of 130,000 feet, or about 25 miles, according to coaches Mike Evele and Doug Hepfer. It skyrocketed past the team’s previous 100,000-feet record set in June. The RoboDawgs started with just one robotics team in 1998, but they've grown to support more than 30 teams at public schools in Grandville, Mich. (Kyle Moroney / AP) Back to slideshow navigation
  3. Spacemen at work

    Russian cosmonauts Oleg Kotov, right, and Sergey Ryazanskiy perform maintenance on the International Space Station on Jan. 27. During the six-hour, eight-minute spacewalk, Kotov and Ryazanskiy completed the installation of a pair of high-fidelity cameras that experienced connectivity issues during a Dec. 27 spacewalk. The cosmonauts also retrieved scientific gear outside the station's Russian segment. (NASA) Back to slideshow navigation
  4. Special delivery

    The International Space Station's Canadian-built robotic arm moves toward Orbital Sciences Corp.'s Cygnus autonomous cargo craft as it approaches the station for a Jan. 12 delivery. The mountains below are the southwestern Alps. (NASA) Back to slideshow navigation
  5. Accidental art

    A piece of art? A time-lapse photo? A flickering light show? At first glance, this image looks nothing like the images we're used to seeing from the Hubble Space Telescope. But it's a genuine Hubble frame that was released on Jan. 27. Hubble's team suspects that the telescope's Fine Guidance System locked onto a bad guide star, potentially a double star or binary. This caused an error in the tracking system, resulting in a remarkable picture of brightly colored stellar streaks. The prominent red streaks are from stars in the globular cluster NGC 288. (NASA / ESA) Back to slideshow navigation
  6. Supersonic test flight

    A camera looking back over Virgin Galactic's SpaceShipTwo's fuselage shows the rocket burn with a Mojave Desert vista in the background during a test flight of the rocket plane on Jan. 10. Cameras were mounted on the exterior of SpaceShipTwo as well as its carrier airplane, WhiteKnightTwo, to monitor the rocket engine's performance. The test was aimed at setting the stage for honest-to-goodness flights into outer space later this year, and eventual commercial space tours.

    More about SpaceShipTwo on PhotoBlog (Virgin Galactic) Back to slideshow navigation
  7. Red lagoon

    The VLT Survey Telescope at the European Southern Observatory's Paranal Observatory in Chile captured this richly detailed new image of the Lagoon Nebula, released on Jan. 22. This giant cloud of gas and dust is creating intensely bright young stars, and is home to young stellar clusters. This image is a tiny part of just one of 11 public surveys of the sky now in progress using ESO telescopes. (ESO/VPHAS team) Back to slideshow navigation
  8. Fire on the mountain

    This image provided by NASA shows a satellite view of smoke from the Colby Fire, taken by the Multi-angle Imaging SpectroRadiometer aboard NASA's Terra spacecraft as it passed over Southern California on Jan. 16. The fire burned more than 1,863 acres and forced the evacuation of 3,700 people. (NASA via AP) Back to slideshow navigation
  9. Where stars are born

    An image captured by NASA's Spitzer Space Telescope shows the Orion Nebula, an immense stellar nursery some 1,500 light-years away. This false-color infrared view, released on Jan. 15, spans about 40 light-years across the region. The brightest portion of the nebula is centered on Orion's young, massive, hot stars, known as the Trapezium Cluster. But Spitzer also can detect stars still in the process of formation, seen here in red hues. (NASA / JPL-Caltech) Back to slideshow navigation
  10. Cygnus takes flight

    Orbital Sciences Corp.'s Antares rocket rises from NASA's Wallops Flight Facility on Wallops Island, Va, on Jan. 9. The rocket sent Orbital's Cygnus cargo capsule on its first official resupply mission to the International Space Station. (Chris Perry / NASA) Back to slideshow navigation
  11. A long, long time ago...

    This long-exposure picture from the Hubble Space Telescope, released Jan. 8, is the deepest image ever made of any cluster of galaxies. The cluster known as Abell 2744 appears in the foreground. It contains several hundred galaxies as they looked 3.5 billion years ago. Abell 2744 acts as a gravitational lens to warp space, brightening and magnifying images of nearly 3,000 distant background galaxies. The more distant galaxies appear as they did more than 12 billion years ago, not long after the Big Bang. (NASA / NASA via AFP - Getty Images) Back to slideshow navigation
  12. Frosty halo

    Sun dogs are bright spots that appear in the sky around the sun when light is refracted through ice crystals in the atmosphere. These sun dogs appeared on Jan. 5 amid brutally cold temperatures along Highway 83, north of Bismarck, N.D. The temperature was about 22 degrees below zero Fahrenheit, with a 50-below-zero wind chill.

    Slideshow: The Year in Space (Brian Peterson / The Bismarck Tribune via AP) Back to slideshow navigation
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