Edward Belbruno, born in Heidelberg and working at JPL in Pasadena, recognized that the chaotic dynamics of more than two-body problems could offer an opportunity for interplanetary travel. He called the technique Fuzzy Boundary Theory, and in 1990 he tested his theory on the trajectories of the Japanese Hiten probe on its lunar trajectory. Similar tricks would later be used on the ISEE-3 probes in 1985 and Genesis in 2001. The presence of Gravitational Corridors, special regions of the energetic landscape comparable to mountain passes, would later be discovered; indeed, a woven network of such corridors could be exploited for interplanetary travel.
