What makes constellations?

Constellations are named after a Greek or Roman God. They were made to help sailors find their way. Now they are used to help more people find their way. In this world such help is very useful.

Wednesday, April 2, 2025

Mercury Days

"On Mercury a day is twice as long as a year."


https://www.skyatnightmagazine.com/space-science/facts-about-astronomy-space

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