This is one of the largest galaxies we know of. It is a spiral galaxy called NGC 2841. It's located near Ursa Major, and is much larger than our own Milky Way. Millions of stars inhabit this galaxy and many are still being formed. We don't know much about galaxy formation, but we posit that galaxies go through life cycles and that each "type" of galaxy is actually at it's own stage. We believe this because the stars in elliptical galaxies are older and cooler than the stars in spiral galaxies. There is also much less star formation occurring.
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