Scientists of the Soil Science and Geopharmacy Research Group of the University of Granada (Spain), directed by Rafael Delgado, have discovered and characterized a new type of atmospheric particle that develops similarly to hail, which could be useful for the study of relevant atmospheric reactions from Earth.

Puerto Rico has a per capita incidence of asthma among the highest in the world, and children are nearly 300 percent more likely to have the respiratory ailment than white non-Hispanic children in the continental United States.