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Could there be an Earth Twin on the Other Side of the Solar System Sharing Earth’s Orbit?
In fact, no. At least if we are talking about another planet, call it an “invisible twin”, on the…

Is it Possible for a Binary Planet System to Sustain an Orbit Around a Single Star?
Yes, though the formation process for such a system is rather difficult to construct, making such binary planet systems…

When Did The First Annular Eclipse Occur?
There is in fact a really thorough answer to this question posted to the astronomy stack exchange. Although the…

The Milankovitch Obliquity Cycle
I believe that you can get a better understanding of the Milankovitch obliquity cycle and how it affects Earth’s…

Is Jupiter a Failed Star?
It would be an exaggeration to call Jupiter a failed star as its mass is far from being large…