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, August 21, 2025

Supermassive blackhole

"An international team of astronomers led by Matus Rybak (Leiden University, Netherlands) has proven, thanks to accidental double zoom, that millimeter radiation is generated close to the core of a supermassive black hole."https://phys.org/news/2025-08-accidental-reveals-millimeter-supermassive-black.html
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