🌌 NASA Astronomy Picture of the Day
Elliptical Galaxy NGC 4881 in Coma Credit:
Date: 1996-11-06

Explanation:
cal galaxies are unlike spiral galaxies
and hence unlike our own Milky Way Galaxy.
The giant elliptical galaxy
named NGC
4881 on the upper left lies at the edge of the giant Coma Cluster of Galaxies.
Elliptical galaxies are ellipsoidal
in shape, contain no spiral arms,
contain little interstellar gas
or dust, and are found mostly
in rich clusters of galaxies.
Elliptical galaxies appear
typically yellow-red, as opposed to spirals
which have spiral arms that appear quite blue.
Much speculation continues on how each type of galaxy can form,
on whether ellipticals can
evolve from colliding spirals,
or spirals can be created from colliding ellipticals, or both.
Besides the spiral galaxy on the right, all other images in this picture
are of galaxies
that lie well behind the Coma Cluster.







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