In which method is heat energy transferred from one object through space to another object?

The correct method of heat energy transfer from one object to another through space is radiation. This process involves the emission of thermal energy in the form of electromagnetic waves, which can travel through the vacuum of space. For instance, the heat from the sun reaches the Earth primarily through radiation, allowing energy transfer without the need for a medium, such as air or water.

Conduction, on the other hand, refers to the transfer of heat through direct contact between materials, and convection involves the transfer of heat through the movement of fluids. Conversion pertains to the transformation of energy from one form to another, rather than a method of heat transfer. Therefore, radiation accurately describes the mechanism by which heat can be transferred across empty space.