We speak with Matt Taylor, Rosetta Project Scientist, at the European Space Agency’s mission control in Darmstadt, Germany, about the plan to crash land the spacecraft on Comet 67P/Churyumov–Gerasimenko.

Mission controllers are rethinking a series of close-up comet flybys planned for Europe’s Rosetta spacecraft after a haze of dust around the comet’s central nucleus led to navigation errors during a close encounter in late March.

This week marks the pinnacle of the professional careers of many scientists, when the European Space Agency plans to put down a three-legged robotic lander on a comet, a risky first-of-a-kind endeavor that could rewrite textbooks on the history of the solar system.