In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...

For years, astronomers have been puzzled by the presence of two gigantic, high-energy “bubbles” towering over and beneath the Milky Way’s center, extending 50,000 light-years into space. First ...

Subscribe to Sky Sports to watch live, or stream on NOW. You'll need a subscription that includes Sky Sports Mix.

Subscribe to Sky Sports to watch live, or stream on NOW. You'll need a subscription that includes Sky Sports NFL.