Overview
- The Mercury Transfer Module separated from the two science orbiters on Sept. 3, 2026, and mission control received confirming telemetry about two hours later showing the remaining stack was powered, oriented, and communicating with Earth.
- Engineers reported the spacecraft reached its intended post-separation configuration and that solar arrays were recharging batteries, easing immediate concerns after earlier mission trouble.
- If operations proceed as planned, the connected orbiters are scheduled for orbital capture on Nov. 21, 2026, with the two probes separating roughly three weeks after capture and a sequence of 16 orbit‑shaping burns to lower them into final mapping orbits.
- BepiColombo overcame a 2024 problem when the transfer module’s ion thrusters and solar power underperformed, forcing a revised trajectory and a longer cruise so the mission could still reach Mercury.
- The mission’s twin orbiters will carry complementary instruments to map Mercury’s surface and interior and to study its magnetosphere, but teams warn the coming months are high risk because operations must run autonomously in intense heat and radiation and will determine whether routine science can begin in spring 2027.