That's simple. They could look through a telescope and see some planets near the earth, but not all. Astronauts travel in space and study them.
the study of stars and planets is colled Astronomy
Science is related to planets through the fields of astronomy and planetary science. Scientists use the scientific method to study planets, collecting data through observations and experiments to better understand their composition, behavior, and characteristics. By applying scientific principles, researchers can uncover the mysteries of planets and expand our knowledge of the universe.
it is the study of the universe such as planets and stars
Astronomy is the renaissance that studies the planets. They study the planets and space.
Astrology is the study of the influence of stars and planets on your future (and past and present).
Astronomy is the study of planets and stars, among many other things.
geochemistry is the study of earth and other planets
I would think exobiology is the study of living things on other planets, though we still have not found living things on other planets.
Astronomers (and their ilk) study stars and planets.
No, planets are not related to geography. Planets are celestial bodies that orbit stars, such as our Sun, in outer space, while geography is the study of the Earth's physical features and processes.
Astrology is the study of the influence of stars and planets on your future (and past and present).