Journey to Mercury

BepiColombo will be launched on an Ariane 5 from Europe’s Spaceport in Kourou, French Guiana. It will use the gravity of Earth, Venus and Mercury in combination with the thrust provided by electric propulsion, to reach Mercury.

Based on an October 2018 launch date, the spacecraft will have a 7.2 year cruise, with one Earth flyby (April 2020), two Venus flybys (October 2020 and August 2021) and six Mercury flybys between October 2021 and January 2025 before arriving in orbit at the end of 2025.

BepiColombo’s journey to MercuryAccess the video

The Mercury Planetary Orbiter (MPO) and the Mercury Magnetospheric Orbiter (MMO) will voyage to Mercury together as a single composite spacecraft, with the Mercury Transfer Module (MTM) providing power and propulsion.

When approaching Mercury, the transfer module will separate and the two spacecraft, still together, will be captured into a polar orbit around the planet. Their altitude will be adjusted using MPO’s thrusters until MMO’s desired elliptical polar orbit of 590 x 11640 km above the planet is reached. Then MPO will separate and descend to its own 480 x 1500 km orbit using its thrusters. The fine-tuning of the orbits is then expected to take three months, after which, the main science mission will begin.

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