{"id":4182,"date":"2021-10-31T10:54:57","date_gmt":"2021-10-31T10:54:57","guid":{"rendered":"https:\/\/alittlebeasty.com\/?p=4182"},"modified":"2021-10-31T10:58:20","modified_gmt":"2021-10-31T10:58:20","slug":"not-only-halloween-today-is-dark-matter-day","status":"publish","type":"post","link":"https:\/\/hoangthilinhchi.com\/?p=4182","title":{"rendered":"Not only Halloween: Today is Dark Matter Day!"},"content":{"rendered":"\n

October 31, 2021
via NASA https:\/\/ift.tt\/2ZNKLmF<\/a><\/p>\n\n\n\n

Dark Matter in a Simulated Universe <\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Is our universe haunted? It might look that way on this dark matter map. The gravity of unseen dark matter is the leading explanation for why galaxies rotate so fast, why galaxies orbit clusters so fast, why gravitational lenses so strongly deflect light, and why visible matter is distributed as it is both in the local universe and on the cosmic microwave background. <\/p>\n\n\n\n

The featured image from the American Museum of Natural History’s Hayden Planetarium Space Show Dark Universe highlights one example of how pervasive dark matter might haunt our universe. <\/p>\n\n\n\n

In this frame from a detailed computer simulation, complex filaments of dark matter, shown in black, are strewn about the universe like spider webs, while the relatively rare clumps of familiar baryonic matter are colored orange. These simulations are good statistical matches to astronomical observations. <\/p>\n\n\n\n

In what is perhaps a scarier turn of events, dark matter — although quite strange and in an unknown form — is no longer thought to be the strangest source of gravity in the universe. That honor now falls to dark energy, a more uniform source of repulsive gravity that seems to now dominate the expansion of the entire universe.<\/p>\n\n\n\n

V\u1eadt ch\u1ea5t t\u1ed1i trong m\u1ed9t v\u0169 tr\u1ee5 m\u00f4 ph\u1ecfng<\/p>\n\n\n\n

V\u0169 tr\u1ee5 c\u1ee7a ch\u00fang ta li\u1ec7u c\u00f3 b\u1ecb ma \u00e1m kh\u00f4ng? N\u1ebfu c\u00f3, th\u00ec n\u00f3 c\u00f3 th\u1ec3 tr\u00f4ng nh\u01b0 th\u1ebf tr\u00ean b\u1ea3n \u0111\u1ed3 v\u1eadt ch\u1ea5t t\u1ed1i. L\u1ef1c h\u1ea5p d\u1eabn c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c ch\u00ednh l\u00e0 l\u00ed do v\u00ec sao c\u00e1c thi\u00ean h\u00e0 quay r\u1ea5t nhanh, t\u1ea1i sao c\u00e1c c\u1ee5m qu\u1ef9 \u0111\u1ea1o thi\u00ean h\u00e0 l\u1ea1i nhanh nh\u01b0 v\u1eady, t\u1ea1i sao c\u00e1c th\u1ea5u k\u00ednh h\u1ea5p d\u1eabn l\u1ea1i l\u00e0m ch\u1ec7ch h\u01b0\u1edbng \u00e1nh s\u00e1ng r\u1ea5t m\u1ea1nh, v\u00e0 t\u1ea1i sao v\u1eadt ch\u1ea5t nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 nh\u01b0 v\u1eady khi n\u00f3 c\u00f3 m\u1eb7t \u1edf c\u1ea3 v\u0169 tr\u1ee5 c\u1ee5c b\u1ed9 v\u00e0 v\u0169 tr\u1ee5 b\u1ee9c x\u1ea1 vi s\u00f3ng. <\/p>\n\n\n\n

H\u00ecnh \u1ea3nh tr\u00ean \u0111\u1ebfn t\u1eeb Tri\u1ec3n l\u00e3m Kh\u00f4ng gian V\u0169 tr\u1ee5 Hayden c\u1ee7a B\u1ea3o t\u00e0ng L\u1ecbch s\u1eed T\u1ef1 nhi\u00ean Hoa K\u1ef3, \u0111\u00e3 n\u00eau b\u1eadt vi\u1ec7c v\u1eadt ch\u1ea5t t\u1ed1i c\u00f3 th\u1ec3 lan tr\u00e0n nh\u01b0 th\u1ebf n\u00e0o v\u00e0 c\u00f3 th\u1ec3 “\u00e1m ma” v\u0169 tr\u1ee5 c\u1ee7a ch\u00fang ta.<\/p>\n\n\n\n

Trong h\u00ecnh l\u00e0 m\u00f4 ph\u1ecfng chi ti\u1ebft tr\u00ean m\u00e1y t\u00ednh, c\u00e1c s\u1ee3i v\u1eadt ch\u1ea5t t\u1ed1i ph\u1ee9c t\u1ea1p, \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng m\u00e0u \u0111en, r\u1ea3i r\u00e1c kh\u1eafp v\u0169 tr\u1ee5 nh\u01b0 m\u1ea1ng nh\u1ec7n, trong khi c\u00e1c kh\u1ed1i t\u01b0\u01a1ng \u0111\u1ed1i hi\u1ebfm c\u1ee7a v\u1eadt ch\u1ea5t baryonic c\u00f3 m\u00e0u cam. Nh\u1eefng m\u00f4 ph\u1ecfng n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c th\u1ed1ng k\u00ea t\u1eeb quan s\u00e1t thi\u00ean v\u0103n. <\/p>\n\n\n\n

C\u00f3 th\u1ec3 \u0111\u00e2y s\u1ebd l\u00e0 m\u1ed9t \u0111i\u1ec1u \u0111\u00e1ng s\u1ee3, khi v\u1eadt ch\u1ea5t t\u1ed1i kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c cho l\u00e0 ngu\u1ed3n h\u1ea5p d\u1eabn k\u1ef3 l\u1ea1 trong v\u0169 tr\u1ee5 n\u1eefa, d\u00f9 v\u1eabn c\u00f2n kh\u00e1 l\u1ea1 v\u00e0 \u1edf d\u1ea1ng kh\u00f4ng x\u00e1c \u0111\u1ecbnh. Ni\u1ec1m vinh d\u1ef1 \u0111\u00f3 gi\u1edd r\u01a1i v\u00e0o tay n\u0103ng l\u01b0\u1ee3ng t\u1ed1i, m\u1ed9t l\u1ef1c \u0111\u1ea9y \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n v\u00e0 d\u01b0\u1eddng nh\u01b0 \u0111ang th\u1ed1ng tr\u1ecb s\u1ef1 gi\u00e3n n\u1edf c\u1ee7a to\u00e0n v\u0169 tr\u1ee5.<\/p>\n","protected":false},"excerpt":{"rendered":"

October 31, 2021via NASA https:\/\/ift.tt\/2ZNKLmF Dark Matter in a Simulated Universe  Is our universe haunted? It might look that way on this dark matter map. The gravity of unseen dark matter is the leading explanation for why galaxies rotate so fast, why galaxies orbit clusters so fast, why gravitational lenses so strongly deflect light, and why […]<\/p>\n","protected":false},"author":1,"featured_media":4186,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-4182","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hoc"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/hoangthilinhchi.com\/wp-content\/uploads\/2021\/10\/Black-and-White-Scary-Spooky-Halloween-Trivia-Quiz-Show-Presentation-2.png?fit=3840%2C2160&ssl=1","jetpack-related-posts":[{"id":4435,"url":"https:\/\/hoangthilinhchi.com\/?p=4435","url_meta":{"origin":4182,"position":0},"title":"Resilience is the key!","author":"alittlebeasty","date":"10\/11\/2023","format":false,"excerpt":"I have just returned from an International Youth program in Bangkok, Thailand called The \ud835\uddd4\ud835\udde6\ud835\uddd8\ud835\uddd4\ud835\udde1 \ud835\udde6\ud835\uddd7\ud835\uddda\ud835\ude00 \ud835\uddec\ud835\uddfc\ud835\ude02\ud835\ude01\ud835\uddf5 \ud835\uddd6\ud835\uddee\ud835\uddfa\ud835\uddfd: \ud835\uddd8\ud835\uddfa\ud835\uddfd\ud835\uddfc\ud835\ude04\ud835\uddf2\ud835\uddff\ud835\uddf6\ud835\uddfb\ud835\uddf4 \ud835\uddd4\ud835\uddf4\ud835\uddf2\ud835\uddfb\ud835\ude01\ud835\ude00 \ud835\uddfc\ud835\uddf3 \ud835\uddd6\ud835\uddf5\ud835\uddee\ud835\uddfb\ud835\uddf4\ud835\uddf2 \ud835\uddf3\ud835\uddfc\ud835\uddff \ud835\udde6\ud835\uddd7\ud835\uddda\ud835\ude00. 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