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Nuclear rockets are the most effective tools for civil and military operators.

"Illustration of a Mars transit habitat and nuclear propulsion system that could one day take astronauts to Mars. Credit: NASA" ScitechDaily.com/Could a Nuclear Thermal Rocket Engine Power a Trip to Mars? NASA and DARPA Are Testing)

Nuclear thermal propulsion is a powerful system. It allows the possibility transfer spacecraft to Mars in a short time. If we compare that system with regular chemical rockets. Nuclear thermal propulsion is one of the most promising systems in the world for many other missions than just for the interplanetary drive. 

The nuclear-powered systems can use to make repairments service to space telescopes. That is orbiting the sun far away from Earth. Also, nuclear-powered space shuttles can operate freely in the orbiting trajectory. 

The nuclear-powered recon satellites or recon shuttles can wait at high orbiters. And then they can dive into the lower orbiter for their missions. And then return to a higher orbiter. 


Small-size nuclear reactors can use subcritical - or modified thorium reactors. In that system, an outcoming energy ray like a laser- or microwave radiation keeps fission going. 


Modular nuclear-powered systems can mount in the small suttle's cargo bay. Those miniature reactors can use the plutonium with weapon enrichment level or modified thorium technology. 

Modified thorium technology or subcritical nuclear reactors are safer than regular reactors. Subcritical nuclear reactors require laser or outcoming energy rays to maintain fission. Cutting energy rays ends the fission reaction. 


Nuclear reactors can use for powerful spaceborne lasers. 


Nuclear reactors can also use in spaceborne military satellites. If large-size satellites are far away from Earth that gives them time to react to incoming ASAT weapons. There is a possibility that four large-size recon satellites can see almost the entire Earth if they are at stationary trajectories. Those satellites are in a static position and they would turn their telescopes. And that allows that system to see all positions on Earth in seconds. Those satellites might be similar to the JWST telescope. 

But stationary recon satellites are good targets for ASAT weapons. That means they need the weapon system to defend themselves against kinetic energy ASAT. And those systems can use also be against other satellites. The same satellite can operate as recon and attack missions at least against other satellites. 

If the killer satellite is above all other satellites it can destroy targets by using high-power lasers or maser rays. The military killer satellite can al jam the communication of other satellites. And those systems can deny communication between nuclear submarines and command centers. 


https://scitechdaily.com/could-a-nuclear-thermal-rocket-engine-power-a-trip-to-mars-nasa-and-darpa-are-testing/


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