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a hubble space telescope
Galileo
Astronomy.
teliscopes
The study of the night sky eventually became the science of astronomy, which focuses on understanding celestial objects and phenomena like stars, planets, galaxies, and comets. Astronomy also encompasses the study of the origins and evolution of the universe as a whole.
Scientists use telescopes, such as optical telescopes, radio telescopes, and space telescopes, to observe objects in the night sky. They also use instruments like spectrographs and cameras to analyze the light from celestial objects and gather data for research and study.
Camera's
Galileo
They study all kinds of things or look through telescopes and look at the sky to see what's happening
Venus has been known to mankind since ancient times, as this planet is easily discernible in the night sky. Therefore, Venus was not discovered by any scientist.
its the telescope with suitable configuration of power.
You have to study and study to become a scientist. you have to do experaments your self to see if you are a natural scientist.