https://freerepublic.com/tag/ngc520/ en-us Tue, 7 Sep 2021 23:00:55 GMT Focus Forum 15 https://freerepublic.com/focus/f-chat/3992748/posts Explanation: Is this one galaxy or two? The jumble of stars, gas, and dust that is NGC 520 is now thought to incorporate the remains of two separate disk galaxies. A defining component of NGC 520 -- as seen in great detail in the featured image from the Hubble Space Telescope -- is its band of intricately interlaced dust running vertically down the spine of the colliding galaxies. A similar looking collision might be expected in a few billion years when our disk Milky Way Galaxy to collides with our large-disk galactic neighbor Andromeda (M31). The collision that defines NGC... APOD.NASA.gov https://freerepublic.com/focus/f-chat/3992748/posts#comment Tue, 7 Sep 2021 23:00:55 GMT