4 actually, Io, Europa, Ganymede, Callisto
thermometer, telescope and the inclined plane
Somebody else would probably have made the same discoveries, eventually.
Galileo discoveries are the 4 largest moons of Jupiter, the earth revolves around the sun,rings of Saturn,Venus has phases like the moon,and sun spots
we have a moon
Outside of the basic purposes of the mission, Armstrong did not make any significant discoveries while on the moon.
They discovered that the moon has moon quakes as well.
the existence of ice on the moon and plateau
the discoveries of the probes include new information about the motions of Jupiter's atmosphere and the discovery of three new moons. Voyager probes also discovered that Jupiter has faint dust rings around it and that one of its moons has volcanoes on it.
The telescope
she took pictures of the moon and studied it.
ryan shuck
Which one are you referring to?