Mars on Earth: Bringing Red Planet Samples Back Is a Considerable Challenge

Space.com | 6/4/2019 | Elizabeth Howell
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How can we bring a sample of Mars safely back to Earth? With scientists worldwide curious about the Red Planet's potential for life, NASA and the European Space Agency are working on a future "sample-return" mission to safely study Mars materials.

One possible location for sample hunting could be a Martian spot called Jezero Crater, the site of an ancient lake — and possibly, also a location for ancient microbes.

Rovers - Landers - Mars - Challenge - Space

While rovers and landers can study Mars when they land there, the challenge is that there is only so much space available on these machines for instruments. On Earth, entire laboratories could study Red Planet regolith (soil) and rocks. But getting the samples back to our planet will be a considerable engineering challenge.

ESA officials said in a statement that the two agencies plan to perform three launches from Earth and one from Mars as part of the mission, which will include two Mars rovers and an autonomous docking in Martian orbit.

NASA - Launch - Sample - Return - Lander

“A NASA launch will send the sample return lander mission to land a platform near the Mars 2020 site. From here, a small ESA rover — the Sample Fetch Rover — will head out to retrieve the cached samples,” ESA officials said in another statement.

"Once it has collected them in what can be likened to an interplanetary treasure hunt, it will return to the lander platform and load them into a single large canister on the Mars Ascent Vehicle. This vehicle will perform the first liftoff from Mars and carry the container into Mars orbit. ESA’s Earth Return Orbiter will be the next mission, timed to capture the basketball-size sample container orbiting Mars … the spacecraft will then return to Earth, where it will release the entry capsule for the samples to end up in a specialized handling facility."

Samples

Once the samples arrive...
(Excerpt) Read more at: Space.com
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