Image: Rosetta’s shadow crosses Comet 67P/Churyumov–Gerasimenko in daring encounter

Valentine’s Day 2015 and ESA’s Rosetta swooped in towards Comet 67P/Churyumov–Gerasimenko for a daring close encounter. At just 6 km from the surface, it was the closest the spacecraft had ever been to the comet at that point in the mission.