Elon Musk has shared when he expects to take Starship to Mars for its first uncrewed mission, and he also says Tesla’s Optimus humanoid robot will be on board for the flight.
On Friday, Musk wrote on X that SpaceX’s reusable Starship rocket will take Optimus to Mars at the end of 2026, with human landings expected to commence a few years later.
“Starship departs for Mars at the end of next year, carrying Optimus,” Musk said. “If those landings go well, then human landings may start as soon as 2029, although 2031 is more likely.”
Hold on
— Tesla Optimus (@Tesla_Optimus) March 15, 2025
Last year, the SpaceX and Tesla head also expectations that SpaceX would be able to begin uncrewed launches in 2016, with early launches including both Optimus and a Cybertruck unit.
Musk also followed up the announcement with a post on X on Saturday morning, noting that he expects SpaceX to launch more than 90 percent of Earth’s payload mass to orbit this year. Meanwhile, he says China will make up just around 5 percent, while the rest of the world, including other parts of America, would also make up just 5 percent.
He also predicted that that number would go up even further to nearly 100 percent, once SpaceX’s reusable rocket is being launched more frequently.
“When Starship is launching at high rate, SpaceX will probably carry >99 percent of Earth’s payload mass to orbit. This is necessary to make Mars a self-sustaining civilization,” Musk added.
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To be sure, Musk has been known to make ambitious claims about when his companies’ products would achieve certain milestones. For example, Musk predicted in 2018 that SpaceX could launch a rocket to Mars with humans aboard by 2024, though SpaceX only began testing the company’s reusable Starship in 2023.
Still, the company has been routinely testing Starship since then, and with increasing frequency, and in October, SpaceX performed the first catch of the Starship’s Super Heavy booster after liftoff to demonstrate the concept that a reusable rocket could be possible. In a launch earlier this month, SpaceX again successfully caught the Super Heavy Booster, though it lost the upper stage to a “rapid unscheduled disassembly,” effectively meaning that it had exploded in air and showered surrounding areas with rocket parts.
The explosion was the second consecutive launch in which debris from Starship reigned down, highlighting the continued importance of testing as SpaceX aims to make the rocket a viable product for reusable space travel.
On Friday, SpaceX also launched its Starliner spacecraft to the International Space Station (ISS) to rescue astronauts that have been stuck on the orbital craft, after a Boeing launch was originally intended to bring them back to Earth. While SpaceX attempted to rescue the two astronauts in September, issues with the Starliner craft’s thrusters discovered upon arrival made NASA hold off on approving the return mission.
