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Orion Arm. The Orion Arm, also known as the Orion–Cygnus Arm, is a minor spiral arm within the Milky Way Galaxy spanning 3,500 light-years (1,100 parsecs) in width and extending roughly 10,000 light-years (3,100 parsecs) in length. [2] This galactic structure encompasses the Solar System, including Earth.
The Citadel is a fictional space station and megastructure in the Mass Effect franchise of video games developed by BioWare.An ancient station supposedly constructed by the long-dead Protheans, it serves as the hub of interstellar politics and society in the Milky Way galaxy due to its status as the capital of the Citadel Council, the dominant galactic polity within the Mass Effect universe.
Andromeda Galaxy. A visible light image of the Andromeda Galaxy. Messier 32 is to the left of the galactic nucleus and Messier 110 is at the bottom right. The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31, M31, and NGC 224.
The Milky Way and Andromeda galaxies each contain a central supermassive black hole (SMBH), these being Sagittarius A* (c. 3.6 × 10 6 M ☉) and an object within the P2 concentration of Andromeda's nucleus (1–2 × 10 8 M ☉).
The Mass Effect original trilogy takes place in the Milky Way towards the end of the 22nd century. In 2148, humanity discovered an alien outpost on Mars, and learned that Charon is actually an alien artifact known as a "mass relay" that enables faster-than-light travel to other mass relays located across the galaxy.
Density wave theory or the Lin–Shu density wave theory is a theory proposed by C.C. Lin and Frank Shu in the mid-1960s to explain the spiral arm structure of spiral galaxies. [1] [2] The Lin–Shu theory introduces the idea of long-lived quasistatic spiral structure (QSSS hypothesis). [1] In this hypothesis, the spiral pattern rotates with a ...
Mass Effect 3 is a 2012 action role-playing video game developed by BioWare and published by Electronic Arts. The third major entry in the Mass Effect series and the final installment of the original trilogy, it was released in March 2012 for Microsoft Windows, Xbox 360, and PlayStation 3.
Universe of. Mass Effect. The Art of the Mass Effect Universe, a 2012 publication which contains concept art and commentary by BioWare staff on the characters, locations, vehicles, and weapons of the Mass Effect universe. The Mass Effect media franchise, developed by BioWare and published by Electronic Arts, is set in the distant future where ...