A large wave within the Milky Approach might have been created by one other galaxy

The Milky Approach seems to have an enormous ripple spreading out throughout at the very least 1 / 4 of its disc. If confirmed, the construction is likely to be a relic from a brush with one other galaxy, however not all astronomers are satisfied that it truly exists.

Whereas illustrations usually present our galaxy as a flat disc with a bulge within the center, its construction is way more difficult. Astronomers have mapped undulating clouds of stars and gasoline that create waves throughout small sections of the Milky Approach. They’ve additionally discovered that…