Is there any theoretical way to prevent an object from radiating heat? The only thing I can think of would be to artificially cool the surface to the ambient temperature and store the heat generated from this cooling in a huge heat sink inside the object. This would be a temporary solution, obviously. Are there any permanent solutions? Some way to store heat indefinitely without it escaping as EM radiation? It doesn't seem to violate any thermodynamic laws that I can think of, but it also doesn't seem possible.