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27 votes
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What is the purpose of the satellite that China is putting in lunar orbit?

The Queqiao satellite's primary purpose is to relay communications to/from the upcoming Chang'e 4 lander and its rover. However, it also has scientific targets. In particular it carries a joint Dutch-...
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5 votes
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Why is Queqiao's dish antenna so big? (Chang'e-4 relay satellite) Largest ever on/near the Moon?

Several factors contribute to needing a large antenna: it is used to communicate with the rover, which weighs only 100 kg so can't carry a large dish it'll be in orbit at the Earth-Moon L2 ...
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4 votes
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What spacecraft components are in the foreground of this image of the Earth and Moon? What is the camera inside of?

Queqiao carries two cameras: According to this Xinhua report (Chinese) following the launch, Queqiao, "carries two cameras, one large and one small. The small one will observe how the satellite ...
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1 vote

Was Queqiao in a halo or Lissajous orbit? Why do sources disagree?

Was Queqiao in a halo or Lissajous orbit? It is hard to say which, or even yes or no, because there are so many kinds of Lagrange point orbits possible that can be maintained with a little help from ...
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