The Milky Way may have less dark matter than astronomers thought

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Spinning are shedding new gentle on darkish within the Milky Approach

ALFREDO RUIZ HUERGA / Alamy

Our galaxy might have barely much less darkish matter than beforehand estimated. Measurements of how pulsars – quickly spinning stars that emit beams of sunshine – transfer as they orbit the centre of the Milky Approach have demonstrated that the darkish matter density within the airplane of the galaxy’s disc is decrease than anticipated.

Most of the galaxy’s dark matter abundance are primarily based on the idea that the Milky Approach is in equilibrium, which means its general construction isn’t considerably altering. Nonetheless, …

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