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The largest galaxies are called elliptical because they look like big globes of light emitted from a multitude of stars. The most famous elliptical galaxy is M87, which has up to 2.4 trillion stars.
By measuring the shape and movement of galaxies as far as 10 billion light-years away, astronomers hope to learn more about the dark energy and matter that make up 95% of the universe.
Size (left) and distance (right) of a few well-known galaxies put to scale. There are an estimated 100 billion galaxies in all of the observable universe. [1] On the order of 100,000 galaxies make up the Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a complete list).
Lists of galaxies. List of galaxies; List of largest galaxies; List of galaxies with richest globular cluster systems; List of nearest galaxies; List of galaxies named after people; List of spiral galaxies; List of polar-ring galaxies; List of ring galaxies; List of quasars; Satellite galaxies. List of satellite galaxies of the Milky Way
According to recent studies, the Milky Way as well as the Andromeda Galaxy lie in what in the galaxy color–magnitude diagram is known as the "green valley", a region populated by galaxies in transition from the "blue cloud" (galaxies actively forming new stars) to the "red sequence" (galaxies that lack star formation). Star-formation activity ...
The James Webb Space Telescope has produced its second revelatory image in as many days. Scientists using the observatory have discovered a tightly-packed "knot" of at least three galaxies that ...
The Universe is an American documentary television series that features computer-generated imagery and computer graphics of astronomical objects in the universe plus interviews with experts who study in the fields of cosmology, astronomy, and astrophysics.
These alignments have different names depending on the number of stars visible. Three planets constitutes a mini alignment. Four planets are a small alignment, which we saw during April 8’s eclipse.