The first-ever all-sky X-ray map of our galaxy, provided by the ESA’s eROSITA spacecraft, reveals two massive bubbles. These bubbles extend for up to 50,000 lightyears above and below the Milky Way, and are believed to be remnants of a massive outburst that occurred millions of years ago. We’ve known for a long time that … Continue reading "A second set of even larger bubbles has been found blasting out of the Milky Way’s center"