Karen Uhlenbeck (Wikipedia) is the 2019 Abel Prize Laureate (Wikipedia, Homepage)
… for her pioneering achievements in geometric partial differential equations, gauge theory and integrable systems, and for the fundamental impact of her work on analysis, geometry and mathematical physics.
There is a nice article about it over at Quanta Magazine (link). A mathematical introduction to her field can be found at the following blog: link; and another one here: link.