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An artist's illustration of BepiColombo's transfer module separating from the joined Mercury orbiters in space.
Science & Space

Did BepiColombo successfully separate its transfer module on the way to Mercury?

Published

Verdict
True
Verification confidenceHigh

Explanation

Yes. ESA confirmed on September 3 that BepiColombo's Mercury Transfer Module separated successfully from the spacecraft stack, and telemetry showed the remaining systems were nominal.

The signal was acquired through ESA deep-space antennas in Spain and Argentina. Scientific American independently reported that the two science orbiters had separated from the transfer module and sent a strong signal to Earth.

This was the start of the arrival phase, not Mercury orbit insertion. ESA says MPO and Mio remain joined until after they enter Mercury orbit in November, with the two science orbiters expected to separate in December and science operations scheduled for April 2027.

Key takeaway

The transfer module is gone, but BepiColombo has not yet entered Mercury orbit and its two science orbiters remain joined.

Evidence

ESA confirms successful separation

European Space Agency

Supports the claim

ESA reported that deep-space antennas confirmed the Mercury Transfer Module had separated successfully and that telemetry was nominal.

Based on: European Space Agency

Independent report confirms the maneuver

Scientific American

Supports the claim

Scientific American reported that the two science orbiters split from the transfer module and sent a strong signal to Earth.

Based on: Scientific American

Arrival sequence remains unfinished

European Space Agency

Provides context

The science orbiters are scheduled to enter Mercury orbit together in November, separate in December, and begin science operations in April 2027.

Based on: European Space Agency

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