The close relation between cosmology and the theory of elementary particles is analyzed in the light of prospects of a unified field theory. The unity of their respective problems and solution methodologies is indicated. The difference between the concepts of ’Metagalaxy’ and ’Universe’ is emphasized and some possible schemes for estimating the size of the Universe are pointed out.

PACS: 98.80.−k DOI: 10.1070/PU1997v040n08ABEH000269 URL: https://ufn.ru/en/articles/1997/8/a/ A1997XX57300001 Citation: Rozental’ I L "Elementary particles and cosmology (Metagalaxy and Universe)" Phys. Usp. 40 763–772 (1997) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Оригинал: Розенталь И Л «Элементарные частицы и космология (Метагалактика и Вселенная)» УФН 167 801–810 (1997); DOI: 10.3367/UFNr.0167.199708a.0801