Hubble Solves Mystery of Galactic Bulge

A team of astronomers led by Rongmon Bordoloi of MIT used measurements of UV light taken by the Hubble Space Telescope’s Cosmic Origins Spectroscope to age the two enormous bulges of cooling gas, called the “Fermi Bubbles”, extending outward from our galactic centre more than 20 000 light years to 6 to 9 million years old.