Question

In the early 1600s when Galileo used a telescope to study the moon, which features did he observe

Answer 1

In 1610. July 1. discovered the moons of Jupiter, Ganymede and Europe. Later - Calisto.

Answer 2

i dont think thats an answer option

Answer 3

what are the options?
He also discovered that the moon was kind of following a sinoidal patter on an position time graph!

Answer 4

nothing but vast, smooth areas
wide, dark areas and strange spots and ridges
a very large crater
or evidence of other life forms

Answer 5

b)

Answer 6

With his telescope, he noticed small dark spots that had never been seen before on the illuminated part of the moon's surface, along with similar light spots in the dark area. He observed that as time passed, these and other spots changed, either getting lighter and eventually disappearing or getting darker and more distinct. Galileo also observed that the spots all "have a dark part on the side toward the Sun while on the side opposite the Sun they are crowned with brighter borders like shining ridges. From these and many other observations, Galileo conclude The dark spots are shadows cast by these mountains and valleys as the sun falls on them. As the moon's position relative to the sun changes, the shapes and intensities of these shadows change.---source- galileo.rice.edu/lib/student_work/astronomy95/moon.html