• Our report on time-travel visualisation said cosmonaut Sergei Avdeyev holds the record for space travel (2 February, p 8). In fact, fellow Russian Sergei Krikalyov is the record holder, with 803 days off-planet – compared to Avdeyev’s 747 days.
Letter: For the record
Published 20 February 2013
Issue no. 2905 published 23 February 2013
