The Geosciences GRACE Follow-On spacecraft launches on a SpaceX Falcon 9 rocket in May 2018 at Vandenberg Air Force Base in California. Photo by NASA/Bill Ingalis.

The Geosciences GRACE Follow-On spacecraft launches on a SpaceX Falcon 9 rocket in May 2018 at Vandenberg Air Force Base in California. Photo by NASA/Bill Ingalis.

Looking down, not up, to predict drought

ANU scientists are working with space technology to predict droughts months in advance. Will Wright reports.

What is drought? This seems like a straightforward question, but it is surprisingly tricky to answer.