Realizing the manned spacecraft landing on Mars is an ideal and goal in the US aerospace industry, but a safe and effective landing method has always been one of the technical problems that have not been overcome in this field. On the 3rd of this month, the National Aeronautics and Space Administration (NASA) plans to test the newly improved "UFO" landing deceleration system in the waters off Hawaii.
"If you want to land on Mars, NASA needs the world's most powerful 'parachute'" - according to CNN on the 2nd, the core technology part of the NASA test "Mars Landing Deceleration System" is a name The "low-density supersonic speed reducer" device, which looks like a "flying saucer", is designed to cope with the special environment of low atmospheric density of Mars. NASA hopes to use the test results of this equipment to lay the foundation for the safe and smooth landing of the surface of Mars.
The British "Daily Mail" said that the entire test process will take about 2 hours and 15 minutes. First of all, the "UFO" device will "take off" at the US Navy's Pacific Missile Range, and will be brought to a height of 37,000 meters by a huge weather balloon. This step will take about 2 hours. After that, the balloon is separated from the "flying saucer", which is then sent to the height of about 55,000 meters by the booster rocket at a high speed four times the speed of sound. At this point, the airbags that surround the "flying saucer" begin to inflate and slow down the "flying saucer" by increasing the atmospheric resistance. After that, the "Supersonic Parachute" equipped on the "UFO" will also be launched. The parachute is said to be more than 30 meters in diameter, making it the largest parachute in the world to date and the key to this test. In June 2014, NASA launched a similar “deceleration testâ€, but only achieved “partial success†– when the “flying saucer†landed, the deceleration parachute eventually failed to fully develop.
The US "Washington Post" said that NASA tried to increase the weight limit of the "Mars Lander" through this deceleration system, increasing the "safe weight" from about 1.5 tons to about 2 tons to 3 tons. At the same time, NASA also hopes to improve the landing. The accuracy is reduced from about 9.6 km to about 3.2 km. These factors are important prerequisites for the "human landing on Mars".
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