Comet Interceptor mission, illustration. Announced in 2019, Comet Interceptor has been selected as a mission by the European Space Agency (ESA). It is designed to wait in space and then travel (dotted line) to intercept a newly discovered comet (lower centre) as it enters the inner Solar System. The spacecraft will wait at the Sun-Earth Lagrange point L2 (some 1.5 million kilometres from Earth). The mission comprises three spacecraft that will perform simultaneous observations from multiple points around the comet, creating a 3D profile. Illustration not to scale.