Space
Astrophile: Dizzy exoplanet has a compact 8-hour day
Astrophile is our weekly column on curious cosmic objects, from the solar system to the far reaches of the multiverse
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Astrophile is our weekly column on curious cosmic objects, from the solar system to the far reaches of the multiverse
The best measurement yet of the Pinwheel Galaxy's mass shows that its halo is oddly devoid of stars, putting a wrinkle in a key theory of galactic growth