-
Galileo
was a satilite that studied jupiter and 61 of its moon -
Sputnik 1
it was the first artificial satilite in space -
Alan B. Shepard
Alan Shepard was the first U.S. citizen in space -
first human in space
Yuri A. gagurin was the frst human in space -
Surveyor
was the 1st spacecraft that landed on the moon -
Mariner 10
the first sattilite to orbit and take images of the surface of mercury -
Venera
a space probe that landed on venu