What distinguishes a galaxy from a nebula?
Answer
Galaxies are vast gravitational systems with stars and dark matter
A galaxy is a massive structural entity comprising billions of stars, interstellar gas, dust, and dark matter, all bound together by gravity. In contrast, a nebula is an interstellar cloud of dust and ionized gases. While nebulae act as nurseries for star formation, they remain distinct features contained within the larger, more structurally complex and persistent environment of a galaxy.
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Most Massive Star and the Tarantula Nebula | Hubble Images 4K
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