Figures show how a rumor hardens: the years 2033, 2035, 2037, then 2041 and 2043 have traveled the world’s headlines as China’s crewed Mars launch schedule. According to a detailed status analysis maintained by the space-data outlet azmth, they are nothing of the sort. They come from a conference report — transportation architecture, not a mission announcement — and they appear there as candidate departure windows, design inputs the analysis happened to consider.
The source is a 23 June 2021 China Space News article summarising a plenary report by Wang Xiaojun, president of CALT, formally the China Academy of Launch Vehicle Technology and the Long March rocket builder, with the paper delivered at a Global Space Exploration Conference held in Russia. Wang’s paper sketched a three-step conception: robotic Mars exploration as technology preparation, then initial exploration with crewed flights around and onto the planet and base construction, and finally airline-style operations built on a large Earth-to-Mars transport fleet. He was speaking, the azmth page stresses, as a rocket designer sizing vehicles — no agency was announcing a mission.
The engineering in the document is, unusually, concrete. One initial expedition was costed at seven heavy-lift launches and a single crewed launch, all chemical. The stack would go up in pieces, assembled in low Earth orbit, nudged to a high elliptical orbit by a nuclear electric ferry stage, and sent onward from there. Two nuclear transfer vehicles would fly the interplanetary legs: a crewed ship drawn at 246 tonnes total mass, carrying 108 tonnes of liquid hydrogen plus 65 tonnes of payload, among it a deep-space habitation module plus a crew spacecraft; and a cargo ship at 328 tonnes with 76 tonnes of hydrogen and a 206-tonne payload. Each would run three dual-mode nuclear thermal engines in the 10-tonne thrust class, with a nuclear electric system feeding the subsystems. The lander and ascent vehicle would stay chemical, aerocapture would be used at Mars, and the round trip ran to several hundred days, with possibly ten or more rendezvous and docking events. One sentence even records a studied alternative: a space elevator, floated as a departure point that would shrink the transport problem.
None of it has been approved. What China has funded at Mars is robotic. The programme won formal approval on 11 January 2016, in two published stages: first orbit, land and rove — completed by Tianwen-1 in 2021 — and then sample return, assigned to Tianwen-3. That mission is real: on 12 March 2026, speaking during the annual Two Sessions, chief designer Liu Jizhong reported the key technologies broken through, prototypes under construction, and flight model development to begin within the year — two launches around 2028 on a Long March 5, bringing at least 500 grams of Martian material home around 2031.
The agency’s own clock sits far from 2033. A CNSA roadmap presented to the United Nations on 30 January 2024 by its Lunar Exploration and Space Engineering Center runs its planetary timeline through 2025, 2030, 2040 and 2050 — and slots crewed Mars exploration into the 2040 to 2050 band, a full decade after Wang’s earliest candidate window. The crewed lunar landing, the approved and funded human spaceflight goal, is pegged around 2030. The planning paperwork agreed: a draft 15th Five-Year Plan that circulated after the National People’s Congress convened on 5 March 2026 named a second phase of planetary projects, lunar research station construction and reusable heavy-lift vehicles — and carried no crewed Mars line at all.
The company stated its heavy-lift intentions separately, and they make the gap plain: CNSA’s roadmap gives basic flight verification around 2030 for a tandem configuration lifting 100-150 tonnes to low Earth orbit, a fully reusable 80-tonne configuration near 2040, then a routine transport system for round trips only by 2050. CALT indicated in December 2025 a major milestone was slated for the human-rated Long March 10. None of which makes the Chinese interest in a crewed Mars flight hollow; it makes it, in CALT’s own description, a development route with a mission architecture attached — engineered in enough detail to size the ships, and parked pending a decision that no one in Beijing has published.
