Scientists from the University of Idaho have recently discovered a new method for monitoring water sources from space. This is pretty cool, and is also an important discovery. This technology was developed to help use water for agriculture more efficiently. It takes between 1-and-2,000 liters of water to produce a kilogram of grain, which is pretty inefficient. But using new agricultural methods and using this technology to monitor and manage this water use, the water necessary could drop to 500 liters. But this tech can also be used for other purposes, like mapping water as it evaporates and moves from one spot to another, for monitoring water use and water rights, and may other things.