
andrew emm. davis

andrew emm. davis (jananam 1950) oka american vaataavarana shaastravetta mariyu chikago vishwavidhyaalayamlo khagola shaastram mariyu bhuuvignaana shaastram yokka professor. athanu american rasayana shaastravetta mariyu bhouthika shaastravetta raymond davis juuniyar kumarudu., bhouthika saastramlo nobel bahumati graheeta. 
athani pradhana adhyayana rangam nakshatra nucleosynthesis dwara muulakaala muulam. ayana prastutam ayan nanoprobe anae kotta parikaranni nirminche prajectuku adhipatigaa unnaaru, idhi samakaaleena parikaraala kante merugaina pramaanaalalo isotopic mariyu rasayana vislaeshanhanu anumatistundi. 
athanu 2006loe starr dust antariksha nauka dwara bhoomiki tirigi vacchina commetery dummu mariyu samakaaleena interstellar dhooli gurinchi kooda adhyayanam chestunnadu. 2018loe, athanu american association pharr dhi advancement off sainslo pheloga niyaminchabaddaadu.
vidyaaparamaina parisoedhana.
soura vyavastha yokka prarambha charitranu ardham chesukovadaniki ayana ulkalalo vakreebhavana cherikala isotopic kuurpula gurinchi parisoedhanalu nirvahistunnaaru. 26ell-26enji vyavastha vanti swalpakaalika kalamapakalu 4.55 billion samvatsaraala kritam jarigina sanghatanalaku konni padula vaela samvatsaraala kaala vyatyaasaalanu matrame parishkarinchagalavu. soura neeharikalo mariyu ulkala grahasakalam yokka maatru sariiraalapai ushna charitralu mariyu redox paristhitulanu parimitam cheyadaaniki isotopic fraction prabhavalu mariyu trace muulakaala saapeksha samruddhi upayoginchabadataayi.
silicon carbide, graphite mariyu itara vakreebhavana khanijalu mariyu raalla yokka chinna (<10 micrometers vyaasam) kanaalu, maranistunna nakshatraala chuttoo ghaneebhavinchaayi (ekkuvagaa erra pedda nakshatraalu mariyu supernova), nakshatraala madhya maadhyamamlo mariyu soura vyavastha erpadinappudu vidhvamsaka prakriyalanu thattukogaligaayi, ippudu ulkalalo kanipistaayi. eee kanaalu pratyeka nakshatraalalo nucleosynthesis yokka isotopic rikaardunu samrakshistaayi. athanu eee dhaanyaala isotopic kuurpulanu kotta saanketikata, resonent ayaneekarana maas spectrometrytho kolustunnaru, dheenini orgaon national laboratorylo athani sahakarulu abhivruddhi chesaaru.
gowravaalu mariyu puraskaralu.
grahasakalam 6947 andrudavis, yuu samayamlo shelt bassu dwara kanugonabadindi.keey. 1981loe schmid-caltech grahasakalam survey, athani paeru meeda pettabadindi. eee adhikaarika kathanaanni mainer planet center 9 augustu 2006 () naa prachurinchindi.