Note that Galileo did not invent the telescope. He was, however, the first person to use a telescope to examine the heavens. Previously, telescopes had only been used to look at distant locations here on Earth.
The telescope
A Telescope he developed
He invented the telescope.
Telescope
He observed them around the year 1609.
Yes he did, using the newly invented telescope.
many craters, mountains, and what Galileo referred to as 'seas'.
Duh, man built a telescope and looked into it.
He found that the Earth moves around that sun. The surface of the moon seemed pitted with craters. and the third one I don't know. Hope the other two help! :)
Galileo Gallilae
I think it was Galileo. Not too sure if he new he was looking at craters though.
Galileo discovered craters on the moon so therefor technically he discovered craters.
Galileo Galilei.
Galileo discovered that between the moons night and day sides the top was sometimes irregular and sometimes the bottom was smooth. He realized the irregularities were because the mountains on the moon.
Galileo Galilei
he discovered that there were craters on the moon
Galileo Galilei found that there were spots on the sun and craters on the moon.
The Physicist, Galileo Galilei.
they thought it was holes to be able to dump in them
He observed them around the year 1609.
He thought it was covered in seas because of the craters on the moon.