Here's an article about how they can look at how much oil exists via shadows cast from the sun. https://www.wired.com/2015/03/orbital-insight/ https://www.wire

Here's an article about how they can look at how much oil exists via shadows cast from the sun. https://www.wired.com/2015/03/orbital-insight/ https://www.wired.com/2015/03/orbital-insight/