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Lunar regolith sample collected by China's Chang'e 5 mission displayed at Airshow China 2021. On 16 December 2020, China's Chang'e 5 mission returned to Earth with about 2 kilograms of rock and dirt it picked up from the Moon. It is the first lunar regolith sample to return to Earth since 1976.
Set on a new planet, Subnautica 2 will support single-player and co-op gameplay with a total of up to four players, the first time multiplayer gameplay is present in the series. [1] A cinematic trailer showed a new vehicle, new creatures and environments and hinted at the introduction of a current mechanic that can drag the player to another ...
It received generally positive reviews from critics and sold over 5 million units by January 2020. A spin-off, Subnautica: Below Zero, which was originally meant to be downloadable content for the base game, was released in May 2021. A direct sequel, Subnautica 2, is planned to release in early access sometime in 2025.
Regolith (/ ˈ r ɛ ɡ ə l ɪ θ /) [1] [2] is a blanket of unconsolidated, loose, heterogeneous superficial deposits covering solid rock. It includes dust , broken rocks, and other related materials and is present on Earth , the Moon , Mars , some asteroids , and other terrestrial planets and moons .
The thickness of the lunar regolith varies between 2 meters (6.6 ft) beneath the younger maria, to up to 20 meters (66 ft) beneath the oldest surfaces of the lunar highlands. The regolith is predominantly composed of materials found in the region, but also contains traces of materials ejected by distant impact craters.
Luckily, the lunar regolith is full of metal oxides. But while the science of extracting oxygen from metal oxides, for example, is well understood on Earth, doing this on the moon is much harder.
In May 2009, Unknown Worlds began taking pre-orders for standard and special edition versions of Natural Selection 2. Natural Selection 2 was released on 31 October 2012. [6] Perfect World acquired a 40% stake in Unknown Worlds Entertainment in August 2011 for CN¥10,803,330.
The cement would be manufactured by beneficiating lunar rock that had a high calcium content. Water would either be supplied from off the Moon, or by combining oxygen with hydrogen produced from lunar soil. [2] Lin et al. used 40g of the lunar regolith samples obtained by Apollo 16 to produce lunarcrete in 1986. [6]