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On this day ...

Started by Thork

Is a flat earth circular?

Started by Thork

Why is the sun round?

Started by Thork « 1 2 3 »

Why is space dark?

Started by Thork

Distance to the Sun - Rowbothams investigation

Started by TierraPlana « 1 2 »

Sun rays

Started by timterroo

Moon phases

Started by timterroo