What is Salyut 1?
{{Infobox space station | spelling = us | station = Salyut 1 (DOS-1) | station_image = | station_image_size = | station_image_caption = Salyut 1 as seen from the departing [[Soyuz 11]] | insignia = Salyut_program_insignia.svg | insignia_size = 160px | insignia_caption = | COSPAR_ID = {{cospar|1971-032A}} | SATCAT = 05160 | sign = Salyut 1 | crew = 3 | launch = {{start-date|April 19, 1971, 01:40:00}}&nbsp;[[Coordinated Universal Time|UTC]] | carrier_rocket = [[Proton-K]] | launch_pad = [[Baikonur Cosmodrome Site 81|Site 81/24]], [[Baikonur Cosmodrome]], [[Soviet Union]] | reentry = {{end-date|October 11, 1971}} | status = [[Atmospheric entry#Deorbit disposal|De-orbited]] | mass = {{convert|18425|kg|lb|abbr=on}} | length = ~{{convert|20|m|ft|abbr=on}} | diameter = ~{{convert|4|m|ft|abbr=on}} | volume = {{convert|99|m3|cuft|abbr=on}} | pressure = | perigee = {{convert|200|km|mi|0|abbr=on}} | apogee = {{convert|222|km|mi|abbr=on}} | inclination = 51.6 [[degree (angle)|degrees]] | speed = | period = 88.5 minutes | orbits_day = | in_orbit = 175 days | occupied = 24 days | orbits = 2,929 | distance = {{convert|118602524|km|mi|abbr=on}} | apsis = gee | as_of = | stats_ref = | configuration_image = RP1357 p64 Salyut 1.svg | configuration_size = | configuration_caption = Soyuz docking with Salyut 1 }} '''Salyut 1''' was the first ever [[space station]] sent into space. It was [[Rocket|launched]] into [[orbit]] in April 1971 by the [[Soviet Union]] and stayed in space until October 1971. During its time in space,