The Mirror US on MSN
Human sperm gets lost in space, throwing wrench in Musk's Mars colonization plans
Elon Musk's hopes of one day colonising other worlds might be nothing more than a pipe dream ...
Live Science on MSN
Astronauts may struggle to reproduce in outer space, study suggests
A new study found that microgravity simulated on Earth hindered sperm cell movement, egg fertilization and embryo development ...
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