Is a ‘selfish gene’ making a Utah family have twice as many boys as girls?

· · 来源:pro资讯

The Artemis IV and V missions in 2028 will use whichever landers are deemed ready for service. If only one company's lander is available, that lander would be used for both missions, an official said. If both are available, one would be used for one flight and one for the other.

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