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.

Thursday, July 9, 2026

Interstellar Space Begin



"Where does the Solar System end and interstellar space begin?"

https://www.universetoday.com/articles/new-horizons-watches-the-solar-wind-as-it-slows-down
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