Mars is the most-visited planet beyond Earth and the stated destination of the world's largest rocket program. It is also farther away, in every sense, than the headlines suggest. This guide maps what is actually happening: the robots working there now, the programs in flux, and the honest gap between today and boots on the ground.
The robots working on Mars right now
As of mid-2026 two NASA rovers are active: Perseverance, caching samples in Jezero Crater and carrying the strongest biosignature candidate yet found, and Curiosity, still climbing Mount Sharp after 14 years. A fleet of orbiters relays their data and maps the planet. The ranks thinned in 2026: NASA declared the MAVEN orbiter dead in June, and China's Zhurong rover has been silent since 2022. Two more travelers are en route: NASA's ESCAPADE twins, launched on New Glenn in late 2025.
The sample return saga
Perseverance has spent five years filling tubes with the most carefully chosen rocks ever collected, on the promise that a Mars Sample Return mission would fetch them. That promise is currently broken: ballooning costs put MSR in restructuring in 2023-2024, and congressional action in January 2026 eliminated its funding. The samples wait in Jezero. China's Tianwen-3, targeting launch around 2028, could plausibly return the first Martian material instead.
What SpaceX actually plans
Starship exists, by Elon Musk's account, to make Mars settlement possible. The concrete status: twelve test flights, no orbital mission yet, and orbital refueling (mandatory for any Mars trip) undemonstrated. In February 2026 SpaceX shifted its near-term focus to the Moon, dropping the late-2026 Mars window; the 2028-2029 alignment is now the earliest plausible uncrewed attempt. Musk's timelines have historically run optimistic, a pattern he acknowledges.
What stands between humans and Mars
The honest list is long. Radiation: a round trip approaches career dose limits with today's shielding. Time and distance: 6-9 months each way, with launch windows every 26 months and no rescue option. Landing: the heaviest object yet soft-landed on Mars is the one-tonne Perseverance; crewed missions need 20-100 times that. Living there: propellant, water, and food must be made locally (Perseverance's MOXIE experiment made oxygen from the atmosphere, a real first step). NASA's own architecture treats crewed Mars as a 2040s prospect, contingent on the Moon program proving the tools.
How to follow along
Watch three storylines: Starship's refueling demonstration (the single biggest unlock), the fate of the Jezero sample cache, and China's Tianwen-3. The timeline tracks milestones as they happen, and the rover articles are updated as discoveries land.
Frequently asked questions
Is anyone on Mars right now?
No humans, and no one has ever been. Two active NASA rovers (Perseverance and Curiosity) and several orbiters are working there as of mid-2026.
When could humans realistically go?
SpaceX talks about crewed landings as soon as the early 2030s if uncrewed Starship landings succeed in 2028-2029; NASA's architecture points to the 2040s. Both depend on technology (orbital refueling, precision heavy landing, life support) that does not exist yet at the needed scale.
Why did Mars Sample Return stall?
Cost estimates grew toward 11 billion dollars with return dates slipping past 2040, prompting a restructuring in 2024 and the elimination of its funding by Congress in January 2026. The collected samples remain safely cached on Mars awaiting a future mission.
Did Mars ever have life?
Unknown. Ancient Mars had rivers, lakes, and organic chemistry, and in 2024-2025 Perseverance found mineral textures at Cheyava Falls that scientists called the clearest potential biosignature yet. Confirming biology likely requires returning samples to Earth labs.