Sciencing on MSN18h
Here's Why We Still Don't Know How Many Solar Systems Are In The Milky Way
We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...
10 mesmerising galaxy images shared by NASA
Scientists, using infrared images from NASA's Spitzer Space Telescope, have found that the Milky Way’s graceful spiral structure is primarily shaped by two arms extending from a central bar of stars.