Longest spaceflight
- Who
- Valeriy Poliyakov
- What
- 437:17:58:31 day(s):hour(s):minute(s):second(s)
- Where
- Not Applicable
- When
- 22 March 1995
The longest manned flight was by Russian doctor Valeriy Poliyakov (b. 27 April 1942), who was launched to the Mir space station aboard Soyuz TM18 on 8 January 1994 and landed in Soyuz TM20 on 22 March 1995 after a spaceflight lasting 437 days 17 hours 58 minutes 31 seconds.