How Big Is The Milky Way
Close your eyes and let your mind drift into the vast, silent expanse of our home galaxy. A gentle journey into the true scale of the Milky Way. Its disk stretches about 100,000 light-years across, but recent observations suggest it may extend up to 200,000 light-years. Our galaxy weighs about 1.5 trillion times the mass of our Sun and contains an estimated 100 to 400 billion stars. If you could travel at the speed of light, it would take 100,000 years to cross from one side to the other. Let the quiet enormity of our galactic home carry you into a deep and restful sleep.
The skinny
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