Exoplanets represent a broad new class of astronomical objects, which became accessible for observations and studies only just before the end of the last century. Owing to continually improving techniques of ground-based observations, and especially observations from space, for a little bit more than two decades thousands of planetary systems of other stars have been discovered, and this process is escalating. Exoplanets are of paramount interest for astrophysical, astrochemical, and dynamical studies. Exoplanetary studies have opened up new horizons to gain insights into fundamental problems of stellar-planetary cosmogony and, in particular, into the question of the origin and evolution of the Solar System. Discoveries of Earth-like planets, especially those orbiting in stellar habitable zones favorable to giving rise to and sustaining life, open new prospects for progress in astrobiology.

Keywords: exoplanets, cosmogony, planetary systems, Solar System PACS: 05.45.Ac, 45.50.Pk, 95.10.Ce, 96.15.De, 97.82.−j (all) DOI: 10.3367/UFNe.2019.10.038673 URL: https://ufn.ru/en/articles/2020/9/a/ 000597245700001 2-s2.0-85098669550 2020PhyU...63..837M Citation: Marov M Ya, Shevchenko I I "Exoplanets: nature and models" Phys. Usp. 63 837–871 (2020) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 21st, May 2019, revised: 22nd, September 2019, accepted: 9th, October 2019 Оригинал: Маров М Я, Шевченко И И «Экзопланеты: природа и модели» УФН 190 897–932 (2020); DOI: 10.3367/UFNr.2019.10.038673