Researchers have developed a light-driven floating device that integrates photocatalytic degradation, solar evaporation, and Marangoni-effect-based motion. This smart evaporator robot purifies water while navigating on the surface using programmable light control. The system demonstrates an energy-free, multifunctional strategy for solar-driven water treatment and dynamic environmental adaptation.

FAYETTEVILLE, Ark. — When you test more than 200,000 soil samples in a year, you not only learn something about how Arkansans grow crops, gardens and lawns, but also the value of recommendations that result from soil test results. Each year, the Arkansas Agricultural Experiment Station publishes the Wayne E. Sabbe Arkansas Soil Fertility Studies. The latest edition, released in spring, features 12 research reports prepared by scientists with the University of Arkansas System Division of Agriculture and the Dale Bumpers College of Agricultural, Food and Life Sciences at the University of Arkansas.

SpaceX’s Falcon 9 is a rocket used for both human and nonhuman space missions, and since 2010, the rocket has been launched over 400 times. Motivated by noise concerns from residents in Ventura County, a team of researchers from BYU and California State University, Bakersfield collected 132 measurements from sonic booms over an area of 200 square miles during the summer of 2024. By collecting data on multiple qualities of the Falcon 9 sonic booms, researchers can help discern how different launch-day variables affect a boom’s impact.