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.

Friday, September 18, 2026

Blackholes Ring



"It is 9 am on a warm July Sunday in Cambridge, as I head towards a café in the city centre."


https://aeon.co/essays/black-holes-ring-like-bells-what-happens-next-is-stranger

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