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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 data covers an area the sky equivalent to 8,600 full moons, and contains about 10 times more objects than a previous map released by the same team back in 2012. ... or free-floating planets ...
Learn about the Sun and the objects that orbit it, including the eight planets, the nine dwarf planets, and the small bodies such as asteroids, comets, and moons. Explore the formation, evolution, and features of the Solar System and its place in the Milky Way galaxy.
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 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 ...
We now have the most detailed catalogue of stars in our Milky Way galaxy yet. The new map — created using data collected by the Gaia satellite — shows about 1.7 billion stars, including many ...
The Galactic Center is the barycenter of the Milky Way and a corresponding point on the rotational axis of the galaxy. It contains a supermassive black hole of about 4 million solar masses, called Sagittarius A*, which is a compact radio source near the galactic rotational center.
An overview of the Solar System, its regions, celestial objects, structure, composition, history, exploration and lists. Learn about the Sun, planets, moons, dwarf ...