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Did Earth life actually begin on Mars? Asteroid impacts could let microbes planet-hop, study suggests
"Life might actually survive being ejected from one planet and moving to another." ...
Japan's new HTV-X cargo spacecraft departed the International Space Station today (March 6) after a four-month stay.
This all-inclusive refractor is best for observing planets and the moon, but still able to give skywatchers some glimpses of deep-sky objects.
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