Stacy McGaugh (Triton Station)

A blog about the science, philosophy, and sociology of astrophysics and cosmology, especially concerning dark matter and modified theories of gravity.

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Big Trouble in a Deep Void

2020158 points29 comments Life, Learning & Writing details

The following is a guest post by Indranil Banik, Moritz Haslbauer, and Pavel Kroupa (bios at end) based on their new paper Modifying gravity to save cosmology Cosmology is currently in a major cris…

Rotation curves: still flat after a million light-years

2024103 points98 comments Science & Space details

That rotation curves become flat at large radii is one of the most famous results in extragalactic astronomy. This had been established by Vera Rubin and her collaborators by the late 1970s. There …