The Titan rocket, for 50 years a workhorse space lifter, made its final flight from Vandenberg AFB, Calif. today with Aerojet first- and second-stage liquid rocket engines powering the massive vehicle ...

Mere weeks away from its dramatic, mission-ending plunge into Saturn, NASA’s Cassini spacecraft has a hectic schedule, orbiting the planet every week in its Grand Finale. On a few orbits, Saturn’s ...