Most accurate measurement yet includes stars, dust, gas, planets and black hole

Astronomers have hauled the Milky Way on to a cosmic scale of sorts, and found that our galaxy has as much mass as 1.5tn suns, give or take a few.

The measurement, the most accurate yet, covers all the stars and planets, dust and gas, and the supermassive black hole that sits at the centre. It alone comes in at 4m times more massive than the sun.

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Read More Scientists discover what the Milky Way weighs

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