Twiggs presented the idea to Puig-Suari in the summer of 1999 and then at the Japan–U.S. Science, Technology and Space Applications Program (JUSTSAP) conference in November 1999.
Twiggs는 이 아이디어를 Puig-Suari에게 1999년 여름 'Japan-U.S. Science,Technology, and Space Applications Program(JUSTSAP)'에서 제안하였다.