Time to break out the tissues, space fans.

TODAY, THE EUROPEAN Space Agency’s Rosetta spacecraft will engage its thrusters for one final maneuver: a suicidal plunge toward the comet it has been orbiting for two years and chasing for a decade. After Rosetta collides with comet 67P/Churyumov-Gerasimenko, its systems will go dark.

Source: An Ode to the Rosetta Spacecraft As It Plummets To Its Death