Franco-US satellite to deliver unprecedented look at Earth's water

A Franco-US satellite is due for launch on Friday for a landmark scientific mission to survey nearly all water on Earth's surface to help scientists investigate its impact on climate.

The Surface Water and Ocean Topography (SWOT) mission will monitor the levels of oceans, lakes and rivers, including in remote locations.

SpaceX delayed the liftoff from California of a Falcon 9 rocket from Thursday to Friday