Ka taƙaita labarin:  Masana ilimin taurari sun yi imanin sigina masu ban mamaki - da aka yi watsi da su a baya kamar fashewar taurari - suna zuwa ne daga duniyar da ke kama da Duniya. Duniyar Gliese 581d tana da yanayin da zai iya tallafawa rayuwa, kuma mai yiwuwa ya zama duniyar dutse, sau biyu girman Duniya. An fara gano sakonni daga duniyar a shekarar 2010, amma a shekarar da ta gabata an yi watsi da su a matsayin amo daga taurari masu nisa. Gungura ƙasa don bidiyo. Masana ilimin taurari sun yi imanin cewa 'alamu na baƙi' masu ban mamaki - waɗanda a baya aka watsar da su a matsayin fashewar taurari - a zahiri suna zuwa ne daga duniyar da take kama da Duniya. An fara gano duniyar Gliese 581d a shekarar 2010 (hoton mai zane) Yanzu, wani ƙarin bincike ya yi iƙirarin cewa binciken 2014 ya dogara ne akan 'binciken bayanan da bai dace ba' kuma Gliese 581d ya wanzu. An fara gano duniyar ne a shekarar 2010. Ita ce duniyar farko mai kama da Duniya da aka gano a yankin 'Goldilocks' a kusa da wata tauraro. Amma ba da daɗewa ba bayan ganowar, wata ƙungiyar masana kimiyya ta ce siginar da ake tunanin daga wata duniya ce a zahiri kawai fashewar maganadisu ne daga taurari. Binciken na baya-bayan nan ya yi iƙirarin cewa binciken burbushin taurari ya dogara ne akan "binciken da bai dace ba game da bayanan". Sun ce hanyar ta dace da manyan duniyoyi, amma dabarar ba ta iya gano kananan duniyoyi kamar GJ 581d. A shekarar da ta gabata, masu bincike na Jami'ar Jihar Pennsylvania sun ce Gliese 581d - da abokin tafiyarsa Gliese 581g - sun kasance kawai yaudarar haske ne wanda ya haifar da fashewar maganadisu daga tauraron gida mai nisan shekaru 22 na haske. Sabon binciken na Burtaniya, duk da haka, ya yi jayayya cewa hanyar da ƙungiyar Pennsylvania ta yi amfani da ita ta dace ne kawai da manyan taurari, kuma tana iya rasa ƙananan kamar GJ 581d. Binciken, na Jami'ar Sarauniya Maryamu, London da Jami'ar Hertfordshire, sun yi iƙirarin yin amfani da ingantaccen tsari akan bayanan da ke akwai. "Kasancewa (ko a'a) na GJ 581d yana da mahimmanci saboda ita ce duniyar farko mai kama da ƙasa da aka gano a cikin 'Goldilocks'-zone a kusa da wata tauraro kuma yana da misali na misali don dabarar Doppler", in ji babban marubucin, Dokta Guillem Anglada-Escudé. 'A koyaushe akwai tattaunawa tsakanin masana kimiyya game da...
Gliese 581d yana cikin yankin da ake iya zama na tauraron kuma yana iya dacewa da mutane. An gano shi a shekara ta 2010, daga baya aka yi watsi da shi a matsayin fashewar taurari kuma ba duniyar ba. Yanzu, masana kimiyya sun yi imanin cewa binciken da ya gabata ya dogara ne akan bayanan da ba daidai ba. Sun ce duniyar ta wanzu kuma tana iya samar da fata don gano rayuwar baƙi.