Mary Allen
Gabatarwa: Neman Duniya Tare da Karnukan Squealing
Sararin samaniya wuri ne mai faɗi da ban mamaki, kuma neman rayuwa ta wuce gona da iri ya daɗe yana jan hankali wajen binciken sararin samaniya. Yayin da yawancin masana kimiyya suka mayar da hankali kan neman rayuwa mai hankali, wasu kuma suna sha'awar gano ko da mafi mahimmancin nau'o'in rayuwa fiye da duniya. Wani al'amari mai ban sha'awa na wannan binciken shine yuwuwar gano duniya tare da karnuka masu tsauri.
Duk da yake wannan yana iya zama kamar wata maƙasudi mai ban sha'awa ga masana ilmin taurari da kuma masana ilimin taurari, kasancewar irin wannan duniyar zai sami babban tasiri ga fahimtarmu game da sararin samaniya da yiwuwar rayuwa fiye da duniyarmu. Wannan labarin zai bincika abubuwa daban-daban da ke tattare da neman irin wannan duniyar, ciki har da neman wuraren da za a iya rayuwa, farautar baƙon jinsuna da halayensu, da yanayin muhallin da ya dace don haɓaka rayuwa.
Neman Yiwuwar Rayuwa Bayan Duniya
Neman rayuwa bayan duniya ya kasance babban abin da aka fi mayar da hankali kan binciken kimiyya shekaru da yawa. An ƙarfafa wannan nema ta hanyar gano exoplanets, taurari a waje da tsarin hasken rana, waɗanda za su iya tallafawa rayuwa. Masana kimiyya sun gano dubunnan taurarin sararin samaniya, waɗanda yawancinsu suna cikin “yankin zama” na tauraruwarsu, inda zafin jiki ya dace don tallafawa ruwa mai ruwa, muhimmin sinadari na rayuwa kamar yadda muka sani.
Duk da haka, neman rayuwa bayan duniya bai iyakance ga kawai gano taurari a cikin yankin da ake zama ba. Masana kimiyya kuma suna sha'awar neman alamun rayuwa a wasu duniyoyi, kamar kasancewar iskar gas da za ta iya haifar da halittu masu rai. Gano irin wannan iskar gas, wanda aka sani da biosignatures, zai zama babban ma'ana mai ƙarfi na kasancewar rayuwa a wata duniyar. Bugu da kari, masana kimiyya kuma suna sha'awar yiwuwar samun rayuwa a cikin matsanancin yanayi, kamar zurfin saman duniyar duniya ko kuma a kan wata da ke kewaya wani katon iskar gas.