T he sparkling spiral galaxy gracing this NASA/ESA Hubble Space Telescope image is UGC 5460, which sits about 60 million ...

It's the closest galaxy to Earth outside our local group ... One of the first star-hopping journeys I made when I started appreciating Ursa Major was to Ursa Minor (the Little Bear).

Over the past decade, scientists have detected a puzzling phenomenon: radio pulses coming from within our Milky Way galaxy that would pulse every two hours, like a cosmic heartbeat.

(CNN) — Over the past decade, scientists have detected a puzzling phenomenon: radio pulses coming from within our Milky Way galaxy that ... the direction of the Ursa Major constellation, where ...