After observing what we thought was just a big asteroid in the asteroid belt, a team of astronomers now thinks this might qualify as a dwarf planet. And scientists had the chance to directly observe the collision of two neutron stars for the first time.
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Sources:
https://www.nature.com/articles/s41550-019-0915-8
https://www.eso.org/public/news/eso1918/
https://www.jpl.nasa.gov/infographics/infographic.view.php?id=11268
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2000010#content
https://nsidc.org/cryosphere/seaice/processes/albedo.html
https://iopscience.iop.org/article/10.3847/1538-4357/aaf006
https://www.nature.com/articles/s41586-019-1676-3.pdf
https://www.sciencemag.org/news/2019/10/some-universe-s-heavier-elements-are-created-neutron-star-collisions
https://www.asc.ohio-state.edu/physics/ntg/6805/slides/rprocess.pdf
http://hyperphysics.phy-astr.gsu.edu/hbase/Astro/nucsyn.html#c1
https://www.sciencemag.org/news/2017/10/merging-neutron-stars-generate-gravitational-waves-and-celestial-light-show
http://www.cambridge.org/9781108422161
https://link.springer.com/chapter/10.1007/978-3-662-55054-0_3
Images:
https://www.istockphoto.com/vector/cute-planets-gm1179271747-329918350
https://commons.wikimedia.org/wiki/File:AnimatedOrbitOf10Hygiea.gif
https://commons.wikimedia.org/wiki/File:SPHERE_image_of_Hygiea.jpg
https://commons.wikimedia.org/wiki/File:Ceres_-_RC3_-_Haulani_Crater_(22381131691)_(cropped).jpg
https://www.eso.org/public/videos/eso1918c/
https://en.wikipedia.org/wiki/File:Neutron_Star_gravitational_lensing.png
https://commons.wikimedia.org/wiki/File:FusionintheSun.svg
https://commons.wikimedia.org/wiki/File:Keplers_supernova.jpg
https://www.istockphoto.com/photo/asteroid-in-space-gm535404027-57415452
https://www.istockphoto.com/photo/atom-gm187566822-28714872
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