What the origin of energy in space is?

Answer 1

There are a number of sources of energy in space. Stars (including our own sun) emit a lot of energy which results from nuclear fusion, which is mainly the conversion of hydrogen to helium, although heavier elements are also created (and also release energy, up to iron, after which the process consumes energy rather than releasing it). When matter falls into a black hole, that also releases energy (which derives from gravitational potential energy). There appears to be a mysterious form of dark energy as well, whose nature is not well understood, which has the effect of causing the expansion of the universe to accelerate. Those are the main origins of energy in space that we know of. There could be more.

Answer 2

Mass and Charge are the likely origin of energy in space. The fundamental variable in physics is the product of energy and space joule-meter,e.g. hc, where h is Planck's Constant and c is the speed of light and GmM is also joule-meter and zcq^2 is also joule-meter..