Loading…
Loading contentLoading…
Loading contentThe problem of setting a heavy crewed vehicle down safely on Mars. The atmosphere is thick enough to fiercely heat an incoming craft yet too thin to slow a massive lander by parachute alone, so landing humans will demand a combination of heat shields, retropropulsion, and technologies well beyond those that delivered the robotic rovers.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.