Gerard Peter Kuiper
, born Gerrit Pieter Kuiper
) was an American astronomer
, born in the Netherlands
Kuiper has discovered a number of satellites (moons) of the planets in the solar system, and suggested the existence of a belt outside Neptune's orbit, now named the Kuiper belt.
In the 1960s, Kuiper also helped identifying landing sites on the moon for the Apollo program.
Gerard Peter Kuiper: NASA KAO's Namesake