Galileo looked at the planet Jupiter and observed its 4 largest moons (which are still known as the Galilean moons, to this day).
Galileo first used a telescope to observe the sky.
How long did it take Galileo to make the first telescope?
Galileo used and made the first telescope.
Galileo first invented what is recognized as the telescope.
Galileo was probably the first scientist to use a telescope.Telescopes were invented about 1608 by spectacle makers in the Netherlands. Galileo used one for astronomy the following year.Galileo .
I don't know who but I think a telescope. Galileo looked was first to look through the telescope.
The first person known to have looked at the heaves through a telescope was Galileo.
Galileo first used a telescope to observe the sky.
How long did it take Galileo to make the first telescope?
Galileo wasn't the first to make a telescope but he discovered the telescope at the age of 46.
Galileo was the first person to use a telescope for technological uses.
probably the moon
Galileo Galilei first used the "new" telescope in 1609
Galileo perfected the telescope.
Galileo used and made the first telescope.
people think Galileo made telescope because he was the first one made up telescope
Galileo first invented what is recognized as the telescope.