where does energy come from ?

Question

how this planets are working...who's providing fuel for it....

Answer 1

Yes, you can trace almost all energy back to the sun. For example the energy you use to stay alive came from either a plant or animal that you ate, and you can trace that back to the sun because plants take energy from the sun and create food by photosynthesis. However, there are ecosystems on the bottom of the ocean that do not receive any sunlight, they get their energy from hydrothermal vents on the bottom of the ocean. These vents leak heat energy from the internal earth. Tiny organisms that live in these vents create food for the ecosystem using this energy. The heat energy inside the earth is residual from the earth's formation. Where all this energy came from originally is unknown and we can only theorize how it happened. If you give me any scenario of energy on earth you can trace it back to the sun or the earth's internal energy.

Answer 2

On a universal level, the Big Bang. More localy (by that, I mean our solar system) it comes from gravity. Our sun has a large enough mass that the pressure in it's core is high enough to fuse hydrogen into helium. About 2% of the hydrogen that made up the sun at it's birth has been fused.

This fusion reaction produces the heat that the sun radiates. Most of the energy we have available on earth comes from the sun. Even oil contains solar enegy. Oil fields formed as swamps. The plant matter in those swamps used solar energy to grow. Over millions of years, new swamps would grow over the decaying older swamps. Geological processes eventualy covered these over, and they "cooked" for millions of years into oil.

Answer 3

The energy available to us on Earth comes almost entirely from the Sun. The Sun radiates energy into space (in the form of electromagnetic radiation), and some of it falls on Earth.

As for where energy ultimately comes from, nobody knows. It has always been here. We do know that the amount of energy in the universe is fixed, and that it can't be created or destroyed.

Answer 4

If Einstein's General Theory of Relativity proves correct, and it generally does. Ultimately, all energy and matter are sourced by minuscule strings of pure vibrating energy at the Planck size of 10^-35 cm. Each particle of matter or field of energy is based upon minute strings many billions of time smaller than the nucleus of an atom. If super-string/M-theory is correct, all of space-time fabric and all that lies within are made up of these tiny, tiny little strings of pure vibrating energy. Thus, in our universe at least, the Big-Bang is the ultimate source of all matter and energy.

Answer 5

Your question considered to its natural end will take you out of the realm of science, from "what?" to "why?". Please pursue it there vigorously and honestly. There are those who would deceive you into a deeper naturalistic knowledge for all your answers; it is but a convolution disguised as truth--fact peddled as wisdom. When you've vowed to engage a fair woman to the ends of the earth would you pause as she ascends a tower, to admire the architecture at the base or dwell on the makeup of the stones and the number of bricklayers it took to piece them together? I tell you chase her to the top, even if you discover she has climbed the belfry.

Answer 6

All energy was supposedly created in the big bang at the beginning of our known universe. Energy is not created or destroyed it simply changes forms continually.

Answer 7

The ultimate source of energy is the matter itself. In stars, in the Sun too matter (mass) is converted into energy.
http://en.wikipedia.org/wiki/Nuclear_fusion
http://en.wikipedia.org/wiki/Fusion_power

Answer 8

A good night's sleep.