Milalang'amba ndi zoluka
Pafupi ndi ife, pamlingo wa chilengedwe, ndiko kuti, kunja kwa Mlalang'amba wa Milky Way, mlalang'amba wapezeka womwe mwina uli ndi zinthu zambiri zakuda, zomwe zimapatsa mwayi kuziwona kwake koyambirira. Nthawi yomweyo, zidapezeka kuti zinthu zakuda zitha kukhala zoyandikira kwambiri, ngakhale mkati mwake, chifukwa, monga Gary Preso, wofufuza wa NASA Jet Propulsion Laboratory, adanenera, Dziko lapansi lili ndi "zingwe" zakuda.
Mlalang'amba wa ku Triangulum II ndi kapangidwe kakang'ono kamene kali ndi nyenyezi pafupifupi chikwi. Komabe, asayansi ochokera ku Caltech Institute akukayikira kuti chinthu chamdima chosadziwika bwino chabisika mmenemo. Kodi maganizo amenewa anachokera kuti? Evan Kirby wa Caltech tam’tchula pamwambapa anazindikira kulemera kwa mlalang’amba umenewu mwa kuyeza liwiro la nyenyezi zisanu ndi imodzi zozungulira pakati pa chinthucho pogwiritsa ntchito makina oonera zakuthambo a Keck wa mamita 10. Unyinji wa mlalang'ambawo, wowerengedwa kuchokera kumayendedwe awa, udakhala waukulu kwambiri kuposa kuchuluka kwa nyenyezi zonse, zomwe zikutanthauza kuti mlalang'ambawu mwina uli ndi zinthu zakuda zambiri.
Zikatere, mlalang'amba wa Triangulum II ukhoza kukhala chandamale chachikulu komanso malo ophunzirira. Ili ndi izi, mwa zina, mwayi wokhala pafupi ndi ife. WIMP (Weakly Interacting Massive Particles), m'modzi mwa omwe amafunikira kuzindikira ndi zinthu zakuda, zitha kudziwika momwemo mosavuta, popeza ndi mlalang'amba "wodekha", wopanda magwero ena amphamvu omwe amatha kuganiziridwa molakwika ndi ma WIMP. Zonena za Preso, kumbali inayo, zimachokera ku chikhulupiliro chaposachedwapa chakuti zinthu zamdima zomwe zili mumlengalenga zimakhala ngati "jets zabwino" za tinthu tating'onoting'ono tomwe timadutsa mumlengalenga. Mitsinje ya tinthu tating'ono ting'onoting'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'onoting'ono tomwe timadutsa mumlengalenga, timadutsanso malire a milalang'amba.
Choncho, dziko lapansi likawoloka mitsinje yotereyi paulendo wake, mphamvu yokoka imakhudza iwo, kuwapangitsa kuti aziwoneka ngati tsitsi lokhala ndi mababu omwe amamera kuzungulira dziko lapansi. Malinga ndi wasayansi, iwo amakula kuchokera kudera lomwe lili pamtunda wa makilomita miliyoni pamwamba pa dziko lapansi. M'malingaliro ake, ngati titha kutsata malo a "tsitsi" zotere, zofufuza zofufuzira zitha kutumizidwa kumeneko, zomwe zingapereke chidziwitso pa tinthu tating'onoting'ono tomwe sitikudziwabe kanthu. Mwinanso chabwino chingakhale kutumiza kamera munjira yozungulira Jupiter, pomwe chinthu chakuda "tsitsi" chikhoza kukhalapo mwa mawonekedwe amphamvu kwambiri.
