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 a conceptualized manned space vehicle intended for interplanetary travel, powered by an antimatter-driven nuclear reaction engine. Developed at Penn State University during the 1990s, it aimed to send humans to Mars. The envisioned propulsion system would require minimal amounts of antiprotons combined with conventional fuel sources to achieve a 30-day journey to the Red Planet.