Discover and read the best of Twitter Threads about #darkmatterday

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El 31 de octubre se celebra el día internacional de la materia oscura #DarkMatterDay! (ya que por #Halloween salen los fantasmas 👻🎃) .
¿Sabéis que los romanos nos han ayudado a buscarla experimentalmente? Vamos por partes en un nuevo #hiloIFT...
La #MateriaOscura constituye el 83% de toda la materia en el Universo, pero aún hemos sido incapaces de averiguar de qué está hecha. Y es que detectar estas nuevas partículas no es nada fácil. ¡Atraviesan cualquier material sin apenas dejar traza!

Para intentar observar la materia oscura, los detectores han de ser extremadamente sensibles y protegerse de cualquier otro tipo de señal. Para empezar, se sitúan bajo tierra, como por ejemplo en el Laboratorio Subterráneo de Canfranc @labsubcanfranc
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#DYK American astronomer #VeraRubin was met by skeptics in the 1970s when she proposed evidence for dark matter. She studied galactic rotation curves.

#DarkMatterDay
According to Newton's laws, when objects rotate around a common centre, the ones furthest from the centre move more slowly than those near it. Otherwise, the furthest objects would fly off into space.

✨✨#DarkMatterDay
Rubin's observations of stars in galaxies didn't match this. Either there is mass that we can't see or gravity behaves differently than we presently know. #DarkMatter is now widely accepted in the scientific community thanks to the work of Vera Rubin.

✨✨✨#DarkMatterDay
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