- A chart showing the actual relative sizes of the Messier objects;
- Rebecca Solnit on the potential for imminent revolutionary change;
- Jonathan Haidt’s graduation speech, today.
Now this is cool. The Messier objects, fuzzy objects in the sky listed in the 18th century Messier Catalog as objects to beware of for comet-spotters, and which were later identified has close nebulae and distant galaxies, have become objects for amateur astronomers to track down, as I did in my teens during summers in Apple Valley in the 1970s.
Astronomy Picture of the Day, Sylvian Villet, today: Messier Catalog at Uniform Scale
I’ll quote their entire brief explanation…
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