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The Milky Way is the galaxy that includes the Solar System, with a hazy band of light seen in the night sky. It is a barred spiral galaxy with a supermassive black hole at its center, and contains 100–400 billion stars and planets.
The Large Magellanic Cloud is a dwarf galaxy and satellite galaxy of the Milky Way, visible from the southern hemisphere. It has a central bar, spiral arms, and a black hole, and is predicted to merge with the Milky Way in 2.4 billion years.
The Local Group is the galaxy group that includes the Milky Way, where Earth is located. It has a diameter of 10 million light-years and a mass of 2 × 10 12 solar masses, and consists of two collections of galaxies in a "dumbbell" shape.
The motion of nearly 1.3 billion stars has been recorded as well as the location and brightness of 1.7 billion. ... visualizations of what the Milky Way looks like. The image you see above ( full ...
The European Space Agency launched the Gaia satellite and its one-billion-pixel camera to space back in 2013. Gaia has been mapping the Milky Way ever since, and now the ESA has released a 3D map ...
The huge map has already helped changed our view of the galaxy in unexpected ways, according to its creators. In all, it catalogues more than 1.5 billion objects, a vast improvement on previous ...
Learn about the position and size of Earth in the Solar System and the Universe, based on telescopic observations and scientific measurements. Compare Earth with other celestial bodies and structures, such as the Sun, the Moon, the Kuiper belt, and the Oort cloud.
Learn about the history and types of solar system models, especially mechanical models called orreries, that illustrate the relative positions and motions of the planets and moons. Compare different permanent and temporary orreries and scale models around the world.