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Milky Way is a brand of chocolate-covered confectionery bar manufactured and marketed by Mars, Incorporated. There are two varieties: the US Milky Way bar, which is sold as the Mars bar worldwide, including Canada; and the global Milky Way bar, which is sold as the 3 Musketeers in the US and Canada (neither bar is sold as Milky Way in Canada).
The nature of the Milky Way's bar is actively debated, with estimates for its half-length and orientation spanning from 1 to 5 kpc (3,000–16,000 ly) and 10–50 degrees relative to the line of sight from Earth to the Galactic Center.
Bars are found in about two thirds of all spiral galaxies in the local universe, and generally affect both the motions of stars and interstellar gas within spiral galaxies and can affect spiral arms as well. The Milky Way Galaxy, where the Solar System is located, is classified as a barred spiral galaxy.
The nature of the Milky Way's bar, which extends across the Galactic Center, is also actively debated, with estimates for its half-length and orientation spanning between 1–5 kpc (short or a long bar) and 10–50°. Certain authors advocate that the Milky Way features two distinct bars, one nestled within the other.
Overview. The Milky Way is a barred spiral galaxy with two major arms and a number of minor arms or spurs. [1] The Perseus Spiral Arm, with a radius of approximately 10.7 kiloparsecs, is located between the minor Cygnus and Carina–Sagittarius Arms. [1] It is named after the Perseus constellation in the direction of which it is seen from Earth.
In most of the world, a Mars bar is a chocolate bar with nougat and caramel, coated with milk chocolate. In the United States, it is marketed as the Milky Way bar. It was first manufactured in Slough, England under the Mars bar name in 1932 by Forrest Mars, Sr., son of American candy maker Frank C. Mars.
The WISE satellite later confirmed the X-shape of the bulge. The X-shape makes up 45% of the mass of the bulge in the Milky Way. [10] The boxy/peanut bulges are in fact the bar of a galaxy seen edge-on. [11] Other edge-on galaxies can also show a boxy/peanut bar sometimes with an X-shape.
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.
Forrest Edward Mars Sr. (March 21, 1904 – July 1, 1999) was an American billionaire businessman and the driving force of the Mars candy empire. He is best known for introducing Milky Way (1924) and Mars (1932) chocolate bars, and M&M's (1941) chocolate, as well as orchestrating the launch of Uncle Ben's Rice.
The Large Magellanic Cloud has a prominent central bar and spiral arm. The central bar seems to be warped so that the east and west ends are nearer the Milky Way than the middle. In 2014, measurements from the Hubble Space Telescope made it possible to determine a rotation period of 250 million years.