How do astronomers study the planets in the solar system?

Astronomers use various techniques to study planets in the solar system. One way is through direct observation using telescopes, both on the ground and in space. They can analyze the light reflected off the planets to determine their composition and study their atmospheres. Astronomers also study the behavior of the planets by tracking their orbits and movements, which can reveal information about their size, mass, and gravity. In addition, space probes and rovers can be sent to explore and gather data on the surface of planets and their moons. This can include measurements of temperature, atmospheric pressure, and the presence of minerals and elements.