Let us not forget that in 2020 and 2021, China's Long March 5 Rocket's Core Stages re-entered the Earth threatening orbit after launch Such a situation may arise again. Wentian, the second module of the Chinese Space Station, will be...
Apollo 17 astronauts Eugene Cernan and Harrison Schmitt spent 75 hours on the moon in December 1972. They landed in the Taurus-Littrow valley of the moon Fellow traveler Ronald Evans was traveling around the moon at that time. Schmitt photographed...
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