The Soviet Union's "Luna 16" and "Luna 20" spacecrafts has found Microorganisms into Moon regolith in 1970! I never known about this. Do you?

On 24 September 1970 , for the first time, an unmanned spacecraft delivered a lunar "soil" sample to Earth. The Soviet Union's Luna 16 spacecraft returned from the moon's Sea of Fertility with 101 grams of lunar regolith in a hermetically sealed container (1). In February 1972, only 120 kilometers from the Luna 16 site, Luna 20 used a drill with a ten-inch, hollow-core bit to collect another regolith sample that was also hermetically sealed on the moon (2).

Luna 20: Fossils similar to modern coccoidal bacteria Siderococcus or Sulfolobus, lithified by metalic iron. (Upper scalebar = 1.2 micrometers).

[...] Further study of the photographs was later undertaken by two biologists at the Russian Academy of Sciences, Stanislav I. Zhmur, Institute of the Lithosphere of Marginal Seas, and Lyudmila M. Gerasimenko, Institute of Biology. They noticed that a few of the particles in the photographs were virtually identical to fossils of known biological species. Specifically, some spherical particles from the Luna 20 regolith plainly resemble fossils of modern coccoidal bacteria like Siderococcus or Sulfolobus in their scale, distribution, form, and the distortion of the spheres that occurs during fossilization.

Luna 16: A silicated fossil found in lunar regolith similar to modern spiral filamentous microorganisms such as Phormidium frigidum. Lunar microfossil resembling a spiral filamentous microorganism, from O.D. Rode et al., D. Reidel Publishing Co., 1979.

[...] the fossil's unmistakable resemblance to modern spiral filamentous microorganisms like Phormidium frigidum
Their new analysis of these particles was announced at an astrobiology conference in Denver, 20-22 July 1999, and published in the conference proceedings in December 1999 (4).

[...]The microfossils from the moon are different. Each Luna sample was encapsulated on the moon and opened only in a laboratory where examination commenced immediately. These fossils are solid evidence for ancient life elsewhere in space.

These particular berries, measuring as much as one-eighth of an inch (3 millimeters) in diameter, cover an outcrop called Kirkwood in the Cape York segment of Endeavour Crater's western rim.