many craters, mountains, and what Galileo referred to as 'seas'.
Galileo was the first astronomer to describe surface features of the moon.
Galileo looked at the sun and observed dark blemishes on its surface (which are now called sunspots). From the movement of these blemishes, he was able to determine that the sun has a rotation period of about one month.
he made a telescope, made it look at images 20x closer. He looked at the Jupiter and then saw the four moons and called them the "Galilean Moons".
A radio telescope.
Radar has been used to map the surface of Venus
Galileo's invention helped people see the craters and maria on the moon's surface.
Galileo's invention helped people see the craters and maria on the moon's surface.
Yes, although primitive, it was strong enough to see some parts of the surface of the moon.
Galileo correctly inferred that some of the light-colored features he saw on the moons surface were highlands, or mountains.(:
When Galileo looked through his telescope at the moon, he saw dark, flat parts of the moon's surface which he called maria.
The surface of a radio telescope doesn't have to be as flawless as the surface of an optical telescope because the radio telescope is collecting radio waves, something that will not be affected by faults in the glass. Optical telescopes, on the other hand, are collecting light, where faults in the surface can interfere with the image.
Galileo was the first astronomer to describe surface features of the moon.
Earth's shadow on the moon proved that earth wasn't flat. When galileo first turned his telescope to the moon, he found a surface scarred by craters and maria. Before that time, many people believed that all planetary bodies were "perfect" without surface features.
Galileo looked at the sun and observed dark blemishes on its surface (which are now called sunspots). From the movement of these blemishes, he was able to determine that the sun has a rotation period of about one month.
Earth's shadow on the moon proved that earth wasn't flat. When galileo first turned his telescope to the moon, he found a surface scarred by craters and maria. Before that time, many people believed that all planetary bodies were "perfect" without surface features.
Earth's shadow on the moon proved that earth wasn't flat. When galileo first turned his telescope to the moon, he found a surface scarred by craters and maria. Before that time, many people believed that all planetary bodies were "perfect" without surface features.
Earth's shadow on the moon proved that earth wasn't flat. When galileo first turned his telescope to the moon, he found a surface scarred by craters and maria. Before that time, many people believed that all planetary bodies were "perfect" without surface features.