9h 27min, dec 31, 1989 y - Argo Project Begins

Description:

A program known as Argo deployed 3,000 robotic probes into oceans throughout the world. It was meant to monitor the weather, the climate, and the sea surface height. The last probes were successfully placed in 2007.

This project was significant because it allowed scientists and researchers to collect more accurate, widespread data from the oceans.