ESA’s Gaia telescope has mapped a giant wave rippling outward from the Milky Way’s centre, pushing stars tens of thousands of light-years out of place — and scientists still don’t know what set it in motion

Gaia has revealed a vast stellar ripple travelling through the Milky Way's outer disc. Its scale is extraordinary, but its origin remains unknown. The post ESA’s Gaia telescope has mapped a giant wave rippling outward from the Milky Way’s centre, pushing stars tens of thousands of light-years out of place — and scientists still don’t know what set it in motion appeared first on Space Daily .