> I never even really considered that our own galaxy is 100,000 light years across. The Gaia telescope has helped us revise a lot of numbers around the Milky W

> I never even really considered that our own galaxy is 100,000 light years across. The Gaia telescope has helped us revise a lot of numbers around the Milky Way - we're actually likely the biggest kid on the block. The estimate the size of the Milky Way to be 170,000 to 200,000 light years across.