ICAN-II was a proposed crewed interplanetary spacecraft that used the antimatter-catalyzed micro-fission (ACMF) engine as its main form of propulsion. The spacecraft was designed at Penn State University in the 1990s as a way to accomplish a crewed mission to Mars. The proposed ACMF engine would require only 140 nanograms of antiprotons in conjunction with traditional fissionable fuel sources to allow a one-way transit time to Mars of 30 days.
ICAN-II was an envisioned crewed space vehicle designed for interplanetary travel using an antimatter-powered nuclear reaction engine. Developed at Penn State University in the 1990s, it sought to send humans to Mars. The proposed propulsion system would rely on a minimal amount of antiprotons paired with traditional fuel sources to achieve a 30-day transit time.