It took around seven months for Nasa's perseverance rover to reach the red planet. Nasa's Perseverance rover has landed safely on Mars, starting a new mission to look for signs of ancient life. What is the land
The United States would go on to complete six crewed missions to the moon that landed a total of 12 astronauts (all men) from 1969 to 1972 in a series of Apollo missions numbering up to Apollo 17. The only mission that failed to reach the moon’s surface was Apollo 13, which suffered...
aRecently, two American spaceships, Vikings 1 and 2, landed on Mars trying to discover whether that planet has any life on it. So far the signs of life on Mars has neither confirmed(确认) nor ruled out. Russians have discovered that the surface of Venus(金星) is so hot that it is ...
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