List of space stations by country

This list of space stations is grouped by countries responsible for their operations. The space stations where multiple countries are responsible for their operations are listed separately. Planned and canceled space stations are excluded from this list.

	Never crewed, prototype
‡	Never crewed, non-prototype

Chinese space stations

Name	Entity	Program	Crew size	Launch date	Reentry date	Days in orbit	Days occu- pied	Total crew and visitors	Number of crewed visits	Number of robotic visits	Mass (* = at launch)	Pressurized volume
Tiangong-1	CMSA	Tiangong	3[1]	29 September 2011[2]	2 April 2018[3]	2377	25[4]	6[4][5]	2[4]	1[6]	8,506 kg (18,753 lb)[7]	15 m3 (530 cu ft)[8]
Tiangong-2	CMSA		2	15 September 2016	19 July 2019	1037	26	2	1	1	8,506 kg (18,753 lb)[7]	15 m3 (530 cu ft)[8]
Tiangong space station	CMSA		3	29 April 2021	in orbit	1566	1436	27	9	8	22,600 kg (49,800 lb)	110 m3 (3,880 cu ft) (planned)

Soviet/Russian space stations

Name	Entity	Program	Crew size	Launch date	Reentry date	Days in orbit	Days occu- pied	Total crew and visitors	Number of crewed visits	Number of robotic visits	Mass (* = at launch)	Pressurized volume
Salyut 1	USSR	DOS[9]	3[10]	19 April 1971[11]	11 October 1971[12]	175	24[13]	6[14]	2[14]	0[14]	18,425 kg (40,620 lb)[11]	100 m3 (3,500 cu ft)[15]
DOS-2‡	USSR	DOS[16]	—[a]	29 July 1972[11][17]	29 July 1972	failed to reach orbit	—	—	—	—	18,000 kg (40,000 lb)[18]	—
Salyut 2‡	USSR	Almaz[17]	—[a]	3 April 1973[17]	16 April 1973[17]	13[17]	—	—	—	—	18,500 kg (40,800 lb)[19]	—
Kosmos 557‡	USSR	DOS[20]	—[a]	11 May 1973[21]	22 May 1973[22]	11	—	—	—	—	19,400 kg (42,800 lb)[18]	—
Salyut 3	USSR	Almaz[9]	2[23]	25 May 1974[24]	24 January 1975[25]	213	15[26]	2[26]	1[26]	0	18,900 kg (41,700 lb)*[27]	90 m3 (3,200 cu ft)[20]
Salyut 4	USSR	DOS[28]	2[29]	26 December 1974[30]	3 February 1977[30]	770[30]	92[31]	4[31]	2[31][32]	1[31]	18,900 kg (41,700 lb)[20]*	90 m3 (3,200 cu ft)[20]
Salyut 5	USSR	Almaz[28]	2[33]	22 June 1976[34]	8 August 1977[35]	412	67[36]	4[36]	3[36]	0[36]	19,000 kg (42,000 lb)[20]*	100 m3 (3,500 cu ft)[20]
Salyut 6	USSR	DOS[28][37]	2[38]	29 September 1977[38]	29 July 1982[39]	1764	683[40]	33[40]	16[40]	14[40]	19,000 kg (42,000 lb)[41]	90 m3 (3,200 cu ft)[42]
Salyut 7	USSR		3[43]	19 April 1982[44]	7 February 1991[44]	3216[44]	861[43]	22[43]	10[43]	15[43]	19,000 kg (42,000 lb)[45]	90 m3 (3,200 cu ft)[20]
Mir	USSR Roscosmos		3[46]	19 February 1986[47][b]	23 March 2001[48][47]	5511[47]	4594[49]	125[49]	39[50]	68[49]	129,700 kg (285,900 lb)[51]	350 m3 (12,400 cu ft)[52]

United States space stations

Name	Entity	Program	Crew size	Launch date	Reentry date	Days in orbit	Days occu- pied	Total crew and visitors	Number of crewed visits	Number of robotic visits	Mass (* = at launch)	Pressurized volume
OPS 0855	USAF	MOL	—	3 November 1966[53]	9 January 1967[53]	67	—	—	—	—	9,680 kg (21,340 lb)	11.3 m3 (400 cu ft)
Skylab	NASA	Skylab[54]	3[55]	14 May 1973[56]	11 July 1979[48]	2249	171[57]	9[58]	3[59]	0[60]	77,088 kg (169,950 lb)[61]	360 m3 (12,700 cu ft)[62]
Genesis I	Bigelow Aerospace		—	12 July 2006[63]	(In Orbit)	6971	—	—	—	—	1,360 kg (3,000 lb)[64]	11.5 m3 (410 cu ft)[65]
Genesis II	Bigelow Aerospace		—	28 June 2007[63]	(In Orbit)	6620	—	—	—	—	1,360 kg (3,000 lb)[64]	11.5 m3 (406 cu ft)[65]

Notes

1. The USSR intended to crew these stations with 2 men, however they re-entered the atmosphere before the cosmonauts were launched.
2. Launch date of the initial module. Additional modules for this station were launched later.