Two strange pulses of X-ray energy move out of the center of the galaxy

Millions of years ago, a powerful explosion erupted in the middle Sweet Way, sending twin double waves exploding across the sky. These waves passed through the galaxy, heating all the gas and dust in their path and leaving behind two beams full of hot, energetic ray rays.

Today, these blobs – now known as the Fermi bubbles – orbits half the width of our galaxy. One lobe rises for 25,000 light-years above the Milky Way disc, and the other an equally large loom below. Since their discovery in 2010, the bubbles have been a monolithic mystery of our galaxy – and now we know they are not alone.