And that they were able to pick up from Earth, it turns out. And then Cassini used it to lock onto Huygens. You can do one critical piece of science with the carrier signal alone and that is ...

For the last 13 years, NASA's Cassini spacecraft has spied on Saturn and its many moons. Turns out, this region of space could hold the greatest secrets of our solar system. Here are 5 of the most ...

An curved arrow pointing right. NASA's Cassini spacecraft is on a daredevil mission that is taking it closer to the planet Saturn than it has been in over a decade. In December, the spacecraft ...