BepiColombo Will Arrive at Mercury in November 2026

The spacecraft will begin its orbital mission to study the planet's core and magnetosphere after a decade-long journey.

Updated on Oct. 1, 2026 in Space

A metallic spacecraft orbiting the grey, cratered landscape of Mercury against a backdrop of deep space.
The BepiColombo spacecraft will arrive at Mercury in November 2026, launching an orbital mission to study the planet’s magnetic field and core. AI Illustration. Upload story photo >

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The BepiColombo spacecraft, a joint project of the European Space Agency and Japan Aerospace Exploration Agency, will arrive at Mercury in November 2026. This arrival follows an 11-month delay caused by a 2024 power reduction issue and trajectory modifications.

Why it matters

The mission aims to unlock fundamental secrets about the solar system's smallest planet by analyzing its unique magnetic field and dense core. Probing these features provides critical data on planetary formation and the history of the early solar system.

The BepiColombo craft utilizes an ion engine that is 15 times more efficient than standard rocket engines to navigate. The mission focuses on a planet where the core extends to 85% of its radius and the magnetic field is just 1% as strong as Earth's.

The players

European Space Agency

This intergovernmental organization is dedicated to the exploration of space and leads European efforts in aerospace science.

Japan Aerospace Exploration Agency

This national space agency coordinates the development and research of aerospace technology in Japan.

The details

Engineers recently jettisoned the Mercury Transfer Module to prepare for the final approach phase after adjusting the trajectory. Once in place, the spacecraft will utilize two separate orbiters, the Mercury Planetary Orbiter and Mercury Magnetospheric Orbiter, to conduct a comprehensive survey.

Timeline

  1. October 2018: Launch of the BepiColombo spacecraft.

  2. 2024: A power reduction issue affected the spacecraft performance.

  3. November 2026: Scheduled arrival and entry into orbit at Mercury.

  4. Early 2027: Beginning of official science operations.

Deeper Dive

The BepiColombo mission extends the research legacy of NASA's Mariner 10 mission by shifting from flyby observations to long-term orbital analysis. This arrival marks a significant jump in scientific capacity, allowing researchers to study the planet's magnetosphere with modern instrumentation.

Data gathered from this mission could reshape our understanding of how planets evolve and help refine computer models used for planetary science. These insights into planetary cores and magnetic fields provide a new benchmark for studying celestial bodies across the universe.

The takeaway

The BepiColombo mission demonstrates how engineers can overcome significant mechanical setbacks during deep-space travel through careful trajectory adjustments. It highlights the importance of international collaboration in tackling long-term, high-risk space exploration goals.

Further reading

Learn more about the latest developments in space exploration by visiting the Space section.

Source note: This article includes information reported by KSMU Radio.

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