TMK was the designation of a Soviet space exploration project to send a crewed flight to Mars and Venus without landing.
Artist's depiction of TMK-MAVR on a Venus flyby
The idea of sending humans to Mars has been the subject of aerospace engineering and scientific studies since the late 1940s as part of the broader exploration of Mars. Long-term proposals have includ
TMK
…Launch Vehicle: N1 Human mission to Mars Manned Venus flyby…
Concept for a Mars base, with ice home, pressurized rover, and Mars suits, 2016
Three views of Mars, Hubble Space Telescope, 1997
Inserts depict observation and analysis to find a safe landing site.
Artistic vision of spacecraft providing artificial gravity by spinning (see also Centrifugal force)