by Deborah Byrd, EarthSky
A team of astronomers has produced a 3D map of our galaxy, the 1st accurate one, they say. It reveals our galaxy’s true shape as warped and twisted.
We think of spiral galaxies as being flat. You often hear the disk of our galaxy described as “flat as a pancake.” The large spiral galaxy next door – the Andromeda galaxy – looks flat through a telescope. But nature can be intricate, and, this week (February 4, 2019), astronomers made a surprising announcement. They said our home galaxy, the Milky Way, isn’t flat. Instead it’s warped and twisted.