Mountains. Celestial bodies were thought to be perfectly spherical before that.
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 was first used by the Italian astronomer Galileo Galilei in 1609. Galileo made significant observations of celestial bodies such as the moon, Jupiter, and Venus using his telescope, which played a crucial role in revolutionizing our understanding of the universe.
the sun, stars, planets, moon, through a telescope
Galileo saw in his telescope when it was 1995
Galileo
Galileo
Galileo's invention helped people see the craters and maria on the moon's surface.
many craters, mountains, and what Galileo referred to as 'seas'.
The telescope, invented by Galileo in the early 1600's, allowed us to see objects better that were far away. Galileo is credited with using his first telescope to discover Jupiter's moons, Saturn's rings, and the craters and other features of our moon.
Italian astronomer Giovanni Battista Riccioli was the first to see and document mountains on the moon using a telescope in the 17th century.
Yes, although primitive, it was strong enough to see some parts of the surface of the moon.
Galileo didnt invent the telescope. He improved on the idea of a telescope. The first telescope was made by a Dutch lensmaker named Hans Lippershey, and the chineese used crystal ball lenses to see far distances back in the 400B.C.s. However, Galileo did improve on the telescope in 1611, but only enough to see into the heavens (as the original telescope was alot more of a powerful spyglass)