The Milky Way Broke Its Arm

The spiral of the Milky Way is not as smooth as we once thought because an arm not so far from home appears to be broken! And we may have discovered the answer to why a local asteroid puts on the appearance of a comet.

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Sources:
https://www.nasa.gov/feature/jpl/astronomers-find-a-break-in-one-of-the-milky-way-s-spiral-arms
https://www.aanda.org/articles/aa/full_html/2021/07/aa41198-21/aa41198-21.html
https://www.nasa.gov/feature/jpl/fizzing-sodium-could-explain-asteroid-phaethon-s-cometlike-activity
https://iopscience.iop.org/article/10.3847/PSJ/ac0d02/pdf

Image Sources:
https://commons.wikimedia.org/wiki/File:Pedra_Azul_Milky_Way.jpg
https://exoplanets.nasa.gov/faq/7/where-are-exoplanets/
https://commons.wikimedia.org/wiki/File:NASA-HS201427a-HubbleUltraDeepField2014-20140603.jpg
https://svs.gsfc.nasa.gov/13155
https://www.nasa.gov/feature/jpl/nasa-celebrates-the-legacy-of-the-spitzer-space-telescope
https://solarsystem.nasa.gov/resources/285/the-milky-way-galaxy/
https://www.nasa.gov/feature/jpl/astronomers-find-a-break-in-one-of-the-milky-way-s-spiral-arms
https://www.eso.org/public/usa/videos/eso1339a/
https://commons.wikimedia.org/wiki/File:Center_of_the_Milky_Way_Galaxy_IV_–_Composite.jpg
https://commons.wikimedia.org/wiki/File:Asteroid_3200_Phaethon_(1983_TB).gif
https://commons.wikimedia.org/wiki/File:Animation_of_3200_Phaethon_orbit.gif
https://www.storyblocks.com/video/stock/a-meteor-shower-shooting-across-the-sky-on-a-clear-starry-night-h0quf6cadkrng5cy4
https://commons.wikimedia.org/wiki/File:Halleys_comet_black_background.png
https://www.storyblocks.com/video/stock/slow-motion-big-meteor-on-black-background-bqxgeryfdkp2r93wy
https://www.nasa.gov/feature/jpl/fizzing-sodium-could-explain-asteroid-phaethon-s-cometlike-activity
https://www.storyblocks.com/video/stock/meteor-asteroid-burning-in-atmosphere-production-quality-footage-in-4k-resolution-30-fps-h7img5eglk6106xns
https://www.nasa.gov/planetarydefense/did-you-know