The National Science Foundation (NSF) is offering a federal grant opportunity titled "Aeronomy," aimed at supporting research in the mesosphere, thermosphere, and Earth's ionosphere. The program seeks to enhance understanding of ionization, chemical reactions, and energy transport within these atmospheric regions, as well as their coupling with the stratosphere and magnetosphere, including the effects of high-power radio wave modification. This research is crucial for advancing knowledge in solar and space physics, aligning with the goals of the NAS Decadal Survey. Proposals are accepted on a rolling basis, with no cost-sharing requirements, and interested applicants can reach out to NSF grants.gov support at grantsgovsupport@nsf.gov for assistance. Additional information can be found at the NSF website.