Astronomy & Astrophysics 101: Galaxy - SciTechDaily

A galaxy is a collection of stars, dust, gas, and dark matter held together by gravity. Galaxies contain anywhere from a few hundred million to a hundred trillion stars. Galaxies are collections of stars, dust, gas, and dark matter, which are bound together b…

ByESA/HubbleApril 26, 2022 This Hubble Space Telescope image features NGC4826 a spiral galaxy located 17 million light-years away in the constellation of Coma Berenices (Berenices Hair). This galaxy… [+4430 chars]

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