Cassini Spacecraft's Final Year at Saturn Is Like a 'Brand-New Mission'

After orbiting Saturn and its moons for more than a decade, NASA's Cassini spacecraft has begun its final year of observing the system. The mission will culminate with a plunge into the ringed planet, and the spacecraft will eventually burn up inside Saturn's vast atmosphere. Along the way, Cassini will dart between the rings and the planet itself, collecting valuable data that will reveal the age of the rings and the composition of the planet.