Mars sample-return mission | Wikipedia audio article

This is an audio version of the Wikipedia Article: Mars sample-return mission Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: increases imagination and understanding improves your listening skills improves your own spoken accent learn while on the move reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at:    / @wikipediatts983   You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." Socrates SUMMARY ======= A Mars sample-return mission (MSR) would be a spaceflight mission to collect rock and dust samples on Mars and then return them to Earth. Sample-return would be a very powerful type of exploration, because analysis is freed from the time, budget, and space constraints of spacecraft sensors. Any of Earth's laboratories could study a sample.According to Louis Friedman, Executive Director of The Planetary Society, a Mars sample-return mission is often described by the planetary science community as one of the most important robotic space missions, due to its high expected scientific return on investment.Over time, several concept missions has been studied, but none of them got beyond the study phase. The three latest concepts for a MSR mission are a NASA-ESA proposal, a Russian proposal (Mars-Grunt), and a Chinese proposal.