Mission Log – Jianyu Chu
Sol 193 / 12 July 2040
Alpha A4, Mars
Today felt long — not because of the work itself, but because of the decisions that came with it.
We spent most of the sol in conversation with engineering teams on Earth, including a group from Daimler — the company that built the heavy rover. They were sharp, detailed, and respectful. I could tell they were just as invested in this machine as we were. You could hear the disappointment in their voices when the final assessment came in.
After a full review of the structural damage, motor coupling, and drive system failures, we had to accept the reality: the rover can’t be restored to full mobility. The impact from landing did more than just bend metal — it destabilized the rear drivetrain beyond anything we can fix here with what we’ve got.
But it’s not useless.
With some rewiring and minor rerouting, the internal motor systems are still powerful enough to operate as a stationary winch. That means we can anchor the vehicle and use it to tow or reposition Habs, as long as we do the moving with the two light rovers we already have. Not what we’d planned — but better than losing it entirely.
By the end of the day, the mood was more focused than frustrated. We started drawing up a new deployment plan for when we return to Alpha Base — one that will let us use the heavy rover as a mobile anchor, essentially turning it into a critical piece of infrastructure rather than a transport vehicle.
I know this wasn’t the outcome anyone hoped for, especially after the energy that went into getting it here. But this is Mars — and on Mars, even partial functionality is something to work with.
And in a strange way, I’m proud of the machine. It took a hard landing and still has something left to give.
We all do.
— Chu