Consider a mission to intercept 1I/'Oumuamua -like interstellar object at 100 AU, with a required closing velocity of 200 km/s.
| System | Specific Impulse (Isp) | Thrust | "Bang" Capability | "Burn" Duration | Maturity | | :--- | :--- | :--- | :--- | :--- | :--- | | Chemical (LH2/LOX) | 450 s | 10 MN | Excellent | < 10 min | High | | Nuclear Thermal (NTR) | 900 s | 250 kN | Good | ~1 hour | Medium | | Nuclear Pulse (Orion) | 6,000 s | 10 MN | Excellent (shaped charges) | Intermittent | Low (conceptual) | | Gas-core Fission | 5,000 s | 100 kN | Poor (slow start) | Weeks | Experimental | | Laser-electric hybrid | 10,000 s | 10 N | Good (external bang) | Years | Low | bang and burn mission