The people behind Kerbal Space Program are partnering up with the European Space Agency to bring two new missions to the game's upcoming Shared Horizons update. The ESA's BepiColombo and Rosetta missions will follow up on two other tasks endorsed by NASA.
The first of the two missions, BepiColombo, is KSP's take on the ESA's work alongside the Japan Aerospace Exploration Agency to send a probe to Mercury. In real life, the plan is to complete six fly-bys, but in-game you'll land on the planet's surface and complete a number of experiments. The second mission, Rosetta, is based on the ESA's attempt to visit comet 67P/Churyumov–Gerasimenko, which ran from 2004-2016.
— Kerbal Space Program (@KerbalSpaceP) May 18, 2020
To ensure you look the part, the update will introduce the ESA's Ariane 5 rocket, and let you dress your Kerbals up in official ESA uniforms. There'll also be new parts and new experiments available when Shared Horizons arrives on PC on July 1.