Timeline for On what planar regions are the Earth, Moon.. for that matter, all astronomical bodies, placed in the Universe?
Current License: CC BY-SA 3.0
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| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 10, 2011 at 11:45 | history | answered | Geoff Gaherty | CC BY-SA 3.0 |