A UC NewsWire release and a Scripps News release describe two milestones reached by the Argo robots, which we've covered before. First milestone: there are now 2,057 Argo robots deployed in the world's oceans; two-thirds of the planned 3,000. Second milestone: the global array of robots has already collected 55,000 data profiles. Each Argo robot is design to continously measure salinity, temperature, and velocity of the water at depths up to 2km. Each robot surfaces periodically to relay it's findings to a data assembly center where the data is immediately made available to public for research. For more information on the Argo project, see the Argo home page.