Tsaya a cikin sarari
A cewar masanin kimiyya James Franson na Jami'ar Maryland, wanda ya yi nazarin supernova SN 1987A, saurin haske yana raguwa a cikin vacuum. An buga littattafansa a cikin babbar mujallar kimiyya "Journal of Physics", don haka suna da aminci. Idan an tabbatar da su, hakan yana nufin babban canji a kimiyya, yana kula da saurin haske a cikin injin (299792,458 km / h) a matsayin ɗaya daga cikin manyan abubuwan da ke faruwa.
Franson ya lura cewa akwai bambanci a cikin gudun da neutrinos da photons daga wani supernova ke isa gare mu. Neutrinos sun isa sa'o'i da yawa kafin photons. A cewar masanin ilimin lissafi, hakan na iya faruwa ne saboda a cikin vacuum, photons na iya zama polarized zuwa electrons da positrons, sannan su sake haɗuwa zuwa photons. Kamar yadda ɓangarorin suka rabu, hulɗar gravitational na iya faruwa a tsakanin su, yana ba da gudummawa ga raguwa.
Yana biye da cewa hasken yana rage nisan tafiya, tun da yuwuwar yuwuwar juzu'i na gaba yana ƙaruwa. A nisan da aka auna a cikin miliyoyin shekaru haske, jinkirin photon na haske na iya zama makonni.
