Simplify the following text for a Grade 10 native English-speaking person.
Original: As a result of improvements Galileo Galilei made to the telescope , with a magnifying capability of 20 Ã -- , he was able to see celestial bodies more distinctly than was ever possible before .
Simplified: As a result of improvements he made to the telescope , Galileo was able to see celestial bodies better than ever before in human history .