How does a lander help study the universe?

A lander helps study the universe by deploying scientific instruments directly on the surface of celestial bodies, allowing for in-situ analysis of soil, rock, and atmosphere. This enables researchers to gather detailed data on geological processes, environmental conditions, and potential signs of life. By conducting experiments and sending back real-time information, landers enhance our understanding of the origins and evolution of planets and moons, contributing to broader astronomical knowledge.