Is it possible that the reason we haven't heard from any aliens is because there's too much water out there?
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Ultra-precise measurements of stars in our galaxy put us closer to galactic center than we thought.
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Distant light from the big bang is twisted as it travels to us. This could mean dark matter is more exotic than we thought.
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Astronomers have detected a fusion cycle in our Sun that powers massive stars and creates the elements central to life in the cosmos.
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A new study led by the Harvard-Smithsonian Center for Astrophysics explains how the Moon may not have enough resources to support everything we plan to build up there.
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