Huge Milky Way Gas Bubbles Clocked at 2 Million Mph
Thursday, January 22, 2015 - 08:10
in Astronomy & Space
Giant bubbles of gas that erupted from the core of the Milky Way galaxy millions of years ago are expanding out into space at 2 million mph, according to Hubble Space Telescope observations, which also revealed the composition and mass of the bubbles.