If asked what the most solid material in the universe is, Lynn couldn't answer, because even the previous life's federation's exploration of the cosmos could only be described as insignificant.
However, within the range of his knowledge, neutrons definitely counted as one among them!
As the most critical part of the atomic nucleus, even nuclear explosions couldn't destroy them, one could imagine their level of solidity!
A body solely composed of dense neutrons has a mass that is exaggerated to the point of disbelief, such as the celestial bodies known as neutron stars in the universe, which have a mass of over 100 million tons per cubic centimeter, making them the densest known celestial bodies outside of black holes.
Their terrifying mass can distort space-time, which means they also come with an incredibly strong force field for protection, provided that oneself, located within, isn't torn apart by their gravitational pull.