Sky events, practical guides and clear explanations.
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The average gap between two stars in the Milky Way is about 5 light-years, roughly 29 trillion miles (47 trillion kilometers). One line of argument connects that spacing to why anyone is around to measure it.
19 Sept 2026 · 4 min readMessier 83 is a barred spiral galaxy in Hydra, roughly 15 million light-years away and the southernmost galaxy in Messier's catalogue. Here's what it is, why its arms glow pink, and how to find it with binoculars.
17 Sept 2026 · 7 min readEclipses, meteor showers, conjunctions and other moments worth planning for.
→02Straightforward help with where to look, when to go outside and what to bring.
→03The Moon, Sun, planets, comets, asteroids and the worlds closest to home.
→04Stars, constellations, clusters, nebulae and galaxies beyond our Solar System.
→05Clear answers to the ideas, words and processes that make the universe work.
→06Discoveries, people, mythology and the many ways humans have understood the sky.
→The average gap between two stars in the Milky Way is about 5 light-years, roughly 29 trillion miles (47 trillion kilometers). One line of argument connects that spacing to why anyone is around to measure it.
19 Sept 2026 · 4 min readMessier 83 is a barred spiral galaxy in Hydra, roughly 15 million light-years away and the southernmost galaxy in Messier's catalogue. Here's what it is, why its arms glow pink, and how to find it with binoculars.
17 Sept 2026 · 7 min read