astronomyblog:Galaxy pair M81 and M82. The spiral galaxy M81 and the neighbour galaxy M82 are form
astronomyblog: Galaxy pair M81 and M82. The spiral galaxy M81 and the neighbour galaxy M82 are forming a physical pair. A few tens of million years ago, the smaller M82 collided with M81. This gravitational interaction deformed M82 and caused its concentrated burst of star formation. Image credit: NASA, ESA, Hubble, Roberto Colombari -- source link
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