NASA Probe Flew by Huge Saturn Moon Titan :

NASA's Cassini spacecraft i  flys  by Saturn's moon Titan  to learn more about the huge satellite's thick atmosphere and frigid, sea-studded surface.

During today's encounter — the 103rd Titan flyby for Cassini over its long operational life — the probe will skim just 2,274 miles (3,660 kilometers) above the moon at a speed of 13,000 mph (20,920 km/h), NASA officials said.

Cassini will bounce radio signals off the big Saturn moon toward Earth, where they'll be picked up by the antennas of NASA's Deep Space Network. Scientists will then pore over the signals for clues about Titan's surface, which harbors several large liquid-hydrocarbon seas.