Question

problem 2
the first person who regularly turned a telescope to astronomical observations (and published his observations) was
edwin hubble. galileo galilei. isaac newton.
karl jansky. adam refractor.

Explanation:

Galileo Galilei is widely recognized as the first person to regularly use a telescope for astronomical observations and publish his findings. Edwin Hubble made significant contributions to astronomy later, such as discovering the expansion of the universe. Isaac Newton is famous for his work in physics (laws of motion, universal gravitation) and mathematics (calculus). Karl Jansky is known for discovering radio waves from outer space. "Adam Refractor" is not a recognized historical figure in this context.

Answer:

Galileo Galilei.