Video: Time lapse of ATV’s final departure from ISS

A saucer-shaped entry, descent and landing demonstrator separated from Europe’s ExoMars orbiter Sunday, beginning a three-day approach aiming to become the first European-built craft to set down on the red planet and return data.

The International Space Station’s oldest sections launched nearly 17 years ago, and with the huge orbiting research complex now well into its operational life as a microgravity science lab, prime contractor Boeing’s job is keeping the outpost going, according to Mark Mulqueen, who manages the aerospace company’s space station program.

The European Space Agency’s $1.6 billion Rosetta spacecraft closed in Thursday for a deliberate crash landing on the surface of comet 67P/Churyumov-Gerasimenko early Friday, a slow-motion kamikaze plunge to bring the enormously successful mission to an end after more than two years of unprecedented close-range observations.