Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: NASA's Wilkinson Microwave Anisotropy Probe (WMAP) aikin saki na shekaru tara a cikin 2012 ya kiyasta shekarun duniya ya zama (13.772±0.059) × 109 shekaru (13.772 biliyan shekaru, tare da rashin tabbas na ƙari ko ragi na shekaru miliyan 59). Duk da haka, wannan shekarun ya dogara ne akan zaton cewa tsarin aikin na daidai ne; wasu hanyoyin da za a kiyasta shekarun duniya na iya ba da shekaru daban-daban. Daukan ƙarin yanayin yanayin barbashi na dangi, alal misali, na iya faɗaɗa sandunan kuskuren ƙuntatawar WMAP da tsari ɗaya na girma. Ana yin wannan ma'auni ta amfani da wurin ƙwanƙwasa na farko a cikin ƙarfin ƙarfin microwave don ƙayyade girman girman yanki (girman sararin samaniya a lokacin sake haɗuwa). Lokacin da haske ya yi tafiya zuwa wannan farfajiyar (dangane da tsarin lissafi da aka yi amfani da shi) ya ba da tabbataccen shekarun sararin samaniya. Idan muka yi la'akari da ingancin tsarin da aka yi amfani da shi wajen sanin shekarun, za mu iya yin kuskure kusan kashi ɗaya cikin ɗari.  Tambaya: Abin da factor iya tasiri da tafiya lokaci zuwa decoupling surface?
Tsarin da aka yi amfani da shi