Answer: Luna 16
Sample return missions are spacecraft missions focused on obtaining samples of extraterrestrial materials. The most famous test return mission was always the first return mission citizen ever engaged in: Apollo 11 Mission 1969. Not only did we let men on the moon, but they took back about 49 pounds of it with them.
While putting people on the moon and collecting a test is a remarkable achievement, it is remarkable in its own right to achieve Luna 16 space mission. Luna 16 was an unmanned space mission in the Soviet Luna program. What is remarkable about Luna 16 is that it was the first time a completely autonomous space launch had successfully collected and returned an extraterrestrial test – the Soviets fired a robot probe in space and that probe returned a part of the moon without further intervention. Lunas 16 spacecraft, launched in September 1970, studied the gravity of the moon, landed on the surface, collected a sample and then blasted to the ground, finally returning a sample of the moon (101 grams) lower stage remained on the moon surface and continued transmission of moon temperature and radiation data).
In addition to being the first fully autonomous spacecraft to return an extraterrestrial test (and the third successful trial mission ever after Apollo 11 and Apollo 12), Luna 16 was the first successful trial movement conducted by the Soviet Union. It was also the indirect source of the sole private ownership of a monthly sample in the 20th century, 1993, an example of the Luna 16 mission was sold at a $ 442,500 Sotheby auction.
Other remarkable test missions include NASA's Stardust spacecraft that on January 4, 2006 was the first spacecraft to reproduce a Comet Wild 2 tailwash. In June 2010, the Japan Aerospace Exploration Agency (JAXA) reported that their Hayabusa probe returned an untouched sample of S-type Asteroid 25143 Itokawa.
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