Kosmos 21

Kosmos 21 was a Soviet spacecraft. This mission has been tentatively identified by NASA as a technology test of the Venera series space probes. It may have been an attempted Venus impact, presumably similar to the later Kosmos 27 mission, or it may have been intended from the beginning to remain in geocentric orbit. In any case, the spacecraft never left Earth orbit after insertion by the Molniya launcher. The orbit decayed on 14 November 1963, three days after launch.

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1963  Wikimedia, Wikidata
3MV, Molniya, 

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Location: KML, Cluster Map, Maps,

1963-11-11T00:00:00Z

1963-11-11T00:00:00Z

1963 Kosmos 21

1963-11-16T00:00:00Z

1963-11-16T00:00:00Z

atmospheric entry

1963-11-11T00:00:00Z

1963-11-11T00:00:00Z

rocket launch

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Frameless

Mars-Venera station liquid-based engine (2004)

Position of Venera landing sites superimposed on combined Magellan/Pioneer/Venera topography data

VenusTopoVenera

Type	Subtype	Date	Description	Notes	Source
commons	image		Mars-Venera station liquid-based engine (2004)		Commons
commons	image		Position of Venera landing sites superimposed on combined Magellan/Pioneer/Venera topography data		Commons
commons	image		VenusTopoVenera		Commons