[26-Feb-2013] In this clip, Dr. Eric Lindstrom, a Program Scientist at NASA Headquarters, talks about the connection between ocean-going vessels and ocean-observing satellites and how both are vital in learning more about how ocean circulation works and affects our planet. This video highlights the technological evolution of oceanography from the first at-sea Challenger expedition to the International Space Station and, more recently, the Aquarius/SAC-D satellite, launched to measure worldwide ocean salinity from space.