Flail Chest (Definition) Flail chest is a life threatening medical condition in which multiple segments of the rib cage have been broken and are loosened. These segments cause severe bruising and damage to the lung. ...Read more.
The Milky Way is the second-largest galaxy in the Local Group, with its stellar disk approximately 100,000 ly (30 kpc) in diameter, and, on average, approximately 1,000 ly (0.3 kpc) thick.
That means the edge of the universe is 13.8 billion light-years away -- so far away that we've never been able to observe it. But we're getting closer. This latest breakthrough is something special: an ultra-luminous, light-blue galaxy known as EGS-zs8-1, located in the constellation of BoÃ¶tes.