To make a soft landing on Mars has never been an easy job. Since 1960, humans have carried out Mars exploration activities 44 times, but around half of the missions ended in failure.
Besides a distance of millions of kilometers, scientists say one of the biggest challenges for Mars mission is the seven minutes of terror – that is, the Mars probe needs to reduce its speed from 20,000 kilometers to zero in seven minutes during the re-entry, descent and landing process.
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