First optical measurements of Milky Way’s Fermi Bubbles probe their origin

Using the Wisconsin H-Alpha Mapper telescope, astronomers have for the first time measured the Fermi Bubbles in the visible light spectrum. The Fermi Bubbles are two enormous outflows of high-energy gas that emanate from the Milky Way and the finding refines our understanding of the properties of these mysterious blobs.

Source:
https://phys.org/news/2020-06-optical-milky-fermi-probe.html