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Posts by Tobi Alafin‭

2 posts
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Q&A Planetary Universe?

I'm working on the setting for a fictional story I'm writing and I wanted to inquire as to how possible massive-Universe-sized planets are radius: 5.0x10^30M, without me having to re-make the laws ...

2 answers  ·  posted 8y ago by Tobi Alafin‭  ·  last activity 8y ago by Tobi Alafin‭

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Rigorous Science What's the largest an Earth-like planet can be and support Earth's biosphere?

For certain reasons I decided to not set my story on Earth. However, the planet is meant to host an Earth-like biosphere (including humans, most of Earth's species (perhaps some that didn't evolve ...

4 answers  ·  posted 5y ago by Tobi Alafin‭  ·  last activity 5y ago by Tobi Alafin‭

Question biology xenobiology