Science

The Milky Means could have much less darkish matter than astronomers thought

Spinning stars are shedding new mild on darkish matter within the Milky Means

ALFREDO RUIZ HUERGA / Alamy

Our galaxy could 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 Means have demonstrated that the darkish matter density within the airplane of the galaxy’s disc is decrease than anticipated.

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

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