After about another five billion years, the sun will burn out, and the process of nuclear fusion that has kept the force of gravity from collapsing it will cease to be powerful enough to counter it. The sun will then collapse into a White Dwarf, which is an incredibly dense and comparatively small piece of matter. The white dwarf, will, eventually, cool down into a small, black, non-radiant, cold cinder. The white dwarf is actually extremely dense, with one piece the size of a matchbox weighing in at the same weight as a full-grown African elephant.
The universe cannot run out of energy in the traditional sense, but it may eventually reach a state of maximum entropy where all energy is evenly distributed and no more work can be done. This could lead to the eventual heat death of the universe.
All form of energy would eventually convert to heat, largest heat sink in the universe is space. Earth continue losing heat to space by radiation heat transfer. Absolute temperature of space is slightly higher than 0 K.
universe
Without energy, matter would not have the ability to move or interact with other matter. All processes that require energy, such as chemical reactions, biological processes, and the functioning of machines, would cease. Essentially, the universe would be frozen in a state of complete stillness.
It is impossible to consider all the energy in the universe when doing calculations because the total energy in the universe is unknown and constantly changing due to various factors like expansion and dark energy. It is more practical to focus on known and relevant energy sources for calculations.
Scientists predict that the universe will continue to expand indefinitely, eventually becoming cold and dark in what is referred to as the "heat death" scenario. This will occur as all stars burn out, leaving behind remnants of galaxies and black holes.
The useful energy will be gone eventually, one way or another. As a result of the Second Law of Thermodynamics, it is unavoidable that we will eventually run out of useful energy.
The universe cannot run out of energy in the traditional sense, but it may eventually reach a state of maximum entropy where all energy is evenly distributed and no more work can be done. This could lead to the eventual heat death of the universe.
Eventually all the stars in the universe will extinguish and go supernova, and the universe will become dark. With no light or energy the universe will become a cold and dark place, but alas, there's no reason to start selling all your stuff and preparing for Armageddon as this will take billions and billions of years to happen. Our own Sun will continue to burn strong for about another 7-8 billion years.
All form of energy would eventually convert to heat, largest heat sink in the universe is space. Earth continue losing heat to space by radiation heat transfer. Absolute temperature of space is slightly higher than 0 K.
A description of the universe includes all matter and energy.
The universe is defined as everything - all space, all time, all matter and energy.
Universe
the Universe.
All the energy that is now in the Universe was there since the time the Universe started - that is, since the Big Bang.
All energy eventually turns into heat
universe