Posted: July 1, 2016 in Uncategorized
Tags: ,

nebulastuff:

On the lower left area of this image is spiral galaxy M81, and in the top right you can see irregular galaxy M82. For the past billion years, these two galaxies have been locked in gravitational combat

“The gravity from each galaxy dramatically affects the other during each hundred million-year pass. Last go-round, M82’s gravity likely raised density waves rippling around M81, resulting in the richness of M81’s spiral arms. But M81 left M82 with violent star forming regions and colliding gas clouds so energetic the galaxy glows in X-rays” (x

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