Milky Way’s warp caused by galactic collision, Gaia suggests
Monday, March 2, 2020 - 12:00
in Astronomy & Space
Astronomers have pondered for years why our galaxy, the Milky Way, is warped. Data from ESA’s star-mapping satellite Gaia suggest the distortion might be caused by an ongoing collision with another, smaller, galaxy, which sends ripples through the galactic disc like a rock thrown into water.