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Astronomy and Space

Space, Human spaceflight, space probes and the exploration of our Solar System. No personal theories or speculation please.


1,478 topics in this forum

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  1. Momentum of systems

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  2. Humanoid Aliens? 1 2

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  3. A Realistic Planet with 3 Moons

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  4. Hycean Planets

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  5. Where is Webb?

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