Probes provide scientists with information on the composition, structure, and dynamics of the atmospheres of gaseous giant planets. By directly entering the atmospheres of these planets, probes can measure temperature, pressure, density, and chemical composition, as well as observe cloud structures and atmospheric processes. They can also study the planet's magnetic fields and interaction with the solar wind. Furthermore, probes can release landers or balloons to explore the surface or lower atmosphere of the planet, providing additional data on the planet's interior, geology, and meteorology. This information helps scientists gain a better understanding of the formation, evolution, and diversity of these massive planets and their atmospheres.