Gurɓataccen haske shine kasancewar hasken wucin gadi maras kyau wanda ke haskaka sararin samaniya. Fitillun da ba su da kariya ba dai-dai ba su ne tushen yawancin batutuwan da suka shafi gurɓatar haske a Hawai'i . Urban centers in the cities are often so bathed in light that over a hundred kilometers from the city's edge, the light pollution resulting from the glow is present. This type of lighting is when some or all of the light goes straight up to space, instead of down to the ground or onto objects, and gets wasted. Cibiyoyin birane a cikin birane galibi suna wanka da haske ta yadda sama da kilomita dari daga gefen birnin ana samun gurbacewar hasken da ke fitowa daga hasken. Irin wannan hasken shine lokacin da wasu ko duka hasken ke tafiya kai tsaye zuwa sararin samaniya, maimakon ƙasa ko kan abubuwa, kuma ya ɓace. Duhun dare muhimmin abu ne na halitta, al'adu, kimiyya, ilimi, da tattalin arziki ga Hawai'i. Akwai haɗari a sararin samaniya mai duhu saboda hasken birane wanda ke haskaka sararin samaniya. sararin sama mai duhun dare yana da mahimmanci a kimiyya don bincike da kallon falaki .