4 actually, Io, Europa, Ganymede, Callisto
Somebody else would probably have made the same discoveries, eventually.
Outside of the basic purposes of the mission, Armstrong did not make any significant discoveries while on the moon.
we have a moon
The telescope
she took pictures of the moon and studied it.
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
Found planets and satellites.
the funky worm
Which one are you referring to?
Figure it out for yourself!
ryan shuck
Voyager 1 discovered active volcanoes on Jupiter's moon Io. Voyager 2 discovered the presence of complex ring structures around Saturn. Both Voyager probes detected strong magnetic fields around Jupiter and Saturn.