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.
The Andromeda Galaxy (/aenËdrÉmÉ¨dÉ/), Ã¦nËdrÉmÉ¨dÉ also known As messier, 31, m31 OR ngc, 224 is a spiral galaxy approximately 780 (kiloparsecs.2 5 million-light) years From. eartht 3.4, the apparent magnitude of the Andromeda Galaxy is one of the brightest of any of the Messier objects, making it visible to the naked eye on moonless nights even when viewed from areas with moderate light pollution.