Here are some of the branches of Earth science:

* Geology: The study of the Earth's solid, non-living components, including rocks, minerals, and the Earth's structure.

* Oceanography: The study of the Earth's oceans, including their physical properties, chemistry, and biology.

* Meteorology: The study of the Earth's atmosphere and weather.

* Climatology: The study of the Earth's climate, including its variations over time.

* Geography: The study of the Earth's surface, including its features, landforms, and human populations.

* Environmental science: The study of the interactions between living organisms and their environment, including the impact of human activities on the Earth.

Many different scientists contribute to our understanding of planet Earth, including:

* Geologists

* Oceanographers

* Meteorologists

* Climatologists

* Geographers

* Environmental scientists

* Paleontologists

* Astrophysicists (for understanding the Earth's formation and place in the universe)

Earth science is a vast and complex field, but it is essential for understanding our planet and its systems.