Beyond 2011
NASA is developing a long-term Mars exploration program that charts a course for the next two decades. This
visionary program will build on scientific discoveries from past missions and incorporate the lessons learned
from previous mission successes and failures.
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![This artist's drawing shows a balloon, shaped like an upside-down teardrop, above a square metallic package representing the science payload. To its right is a flat, streamlined plane with the NASA logo on its wing. Both are on a pale orange background that represents the dust-filled martian atmosphere in which they might fly.](https://webarchive.library.unt.edu/eot2008/20090825053431im_/http://marsprogram.jpl.nasa.gov/missions/images/balloonsAirplanes-th.gif) |
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Balloons and Airplanes for Mars |
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Scout Missions
NASA remains committed to creating additional "Scout" missions, such as the
Phoenix lander, which would be selected from proposals submitted by members of
the science community. Such missions might involve airborne vehicles, such as airplanes or balloons, or small
landers that serve as investigation platforms. This approach could open up exciting new vistas by increasing
the number of martian sites visited.
The next Scout mission called MAVEN is an orbiter that will provide information about martian atmosphere, its climate history, and potential habitability. It is scheduled to launch in 2013.
Mars Sample Return
In the second decade of the 21st century, NASA plans additional science orbiters, rovers, and landers. One proposal
is for a Mars Sample Return mission that would use robotic systems and a Mars ascent rocket to collect and send samples
of martian rocks, soils, and atmosphere to Earth for detailed chemical and physical analysis. Researchers on Earth could
measure chemical and physical characteristics much more precisely than they could by remote control. On Earth, they
would have the flexibility to make changes as needed for intricate sample preparation, instrumentation, and analysis
if they encountered unexpected results. In addition, for decades to come, the collected Mars rocks could yield new
discoveries as future generations of researchers apply new technologies in studying them.
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![This picture shows a six-wheeled rover with a round communications antenna on top of its central, metallic, rectangular body. A robotic arm with a scoop on the end reaches out toward layered terrain, as if to take a sample of the soil that would later be analyzed on board the rover for signs of past or present life.](https://webarchive.library.unt.edu/eot2008/20090825053431im_/http://marsprogram.jpl.nasa.gov/missions/images/astroFieldLab-th.gif) |
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Astrobiology Field Laboratory |
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Astrobiology Field Laboratory
Another proposal is for an Astrobiology Field Lab that would conduct a robotic search for life. It would
be the first mission since Viking in the 1970s to look specifically for evidence of past or present life.
The robotic lab would carry instruments for identifying and measuring the chemical building blocks for life
(as we know it), including thousands of carbon-carrying compounds, elements such as sulfur and nitrogen,
and oxidation states of trace metals associated with life. It would conduct detailed analysis of geologic
environments identified by the 2011 Mars Science Laboratory as being conducive to life. Such environments
might include fine-grained sedimentary layers, hot spring mineral deposits, icy layers near the poles, or
sites such as gullies where liquid water once flowed or may continue to seep into soils from melting ice
packs.
Deep Drilling and Other Technologies
NASA is interested in technologies that would increase the rate of mission launch or accelerate the schedule of
exploration. The agency plans to invest in advanced capabilities such as miniaturized surface science instruments
and deep drilling systems that can extend hundreds of meters beneath the surface.
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