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

It looks like a flat stripe because we are viewing it from within its disk; if we were able to get above the Milky Way, it would look like an enormous spiral about 100,000 light years across.

Jamie Carter is an award-winning reporter who covers the night sky. The core of the Milky Way in Sagittarius low in the south over the Frenchman River valley at ... [+] Grasslands National Park ...