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Winter and summer in Antartica

Started by MattyWS

Increased gravity at the poles?

Started by edby « 1 2 3 ... 7 »

Where is the 'edge'

Started by LoveScience « 1 2 »

Moons - How?

Started by Mysfit « 1 2 3 »

Planets Position

Started by blinkwithme « 1 2 »