Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. A large galaxy of over 100 billion or so stars with well defined spiral arms , it is similar to our own Milky Way . This Hubble Space Telescope image of the central region M100 revealing bright stars and intricate winding dust lanes was made in 1993 with the Wide Field and Planetary Camera 2. Studies of stars in M100 have recently played an important role in determining the size and age of the Universe.
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