Labels:bulletin board | encyclical | fence | pier | pole | reckoner | sea | sky | skyscraper | water OCR: Many astrononers have this nebula over the vea including Edwin Hubble published paper on it ecular Although the NGC 2024 cloud is composed prim hydrogen, other molecu been detected in it, inclu nitrous oxide, carbonyl fornaldehyde silicon ammonia and methant discover of these subst clouds demonstrates that mole cycle play an important role Ras of stellar birth and deatl and dust of the cloud TAT iose contained in ancient sta galaxy material was strewn int by stellar r winds and suF astronomers Hubbl incli carbony forms ldehyde silicor methan vole deat alaxy materal