Breaking News: NASA's Cassini spacecraft has plunged into Saturn

NASA's Cassini spacecraft has plunged into Saturn, ending its 20-year mission to expand what we know about the ringed planet Almost at the appointed minute, the signal from Saturn faded and vanished. That marked the quiet end of NASA’s Cassini spacecraft, nearly 20 years after its launch. Here, at the California Institute of Technology, a crowd had gathered to commemorate the spacecraft’s end — part reunion, part celebration, part wake. Read More »