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Does general relativity explain dark energy?
In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales. Measurements of the cosmic microwave background (CMB) suggest the universe began in a hot Big Bang, from which general relativity explains its evolution and the subsequent large-scale motion.
Can we explain dark matter?
Astronomers know more about what dark matter is not than what it is. Dark matter is dark: It emits no light and cannot be seen directly, so it cannot be stars or planets. Dark matter is not antimatter: Antimatter annihilates matter on contact, producing gamma rays. Astronomers do not detect them.
What can general relativity not explain?
Our observations are consistent with Einstein’s theory of general relativity. It cannot fully explain gravity inside a black hole, and at some point we will need to move beyond Einstein’s theory to a more comprehensive theory of gravity that explains what a black hole is.”
What is the difference between dark matter and dark energy?
And what’s the difference between dark energy and dark matter? In short, dark matter slows down the expansion of the universe, while dark energy speeds it up. Dark energy is the far more dominant force of the two, accounting for roughly 68 percent of the universe’s total mass and energy.
What is difference between dark matter and dark energy?
Is dark matter the 4th Dimension?
No. Dark matter had been reasonably conclusively shown to be matter that has a different distribution through space, and very different clumping prosperities than regular matter. It is matter that just doesn’t interact through charge and possibly a few of the other forces.
What is the theory of dark matter?
Two theories to explain the composition of dark matter are Hot Dark Matter theory (HDM) and Cold Dark Matter theory (CDM). The main difference between the two theories is the speed of the candidate particles. As you may have guessed, HDM particles move quickly (and are thus “hot”) while CDM particles move slowly.
What is dark matter science?
Dark Matter is the theoretical material that exists in space that does not emit or reflect light. It is theorized to exist based on the perceived effects it is supposed to exert upon visible forms of matter like galaxies. Some scientists theorize that up to 90\% of the material in space is composed of Dark Matter.
Is relativity wrong?
The wrongness of the relativity of wrong. The relativity of wrong is an essay by Isaac Asimov , in which he argues that physics theories are never really right or wrong; rather what happens is that theories gradually get improved in such a way that they are always a bit less wrong than the previous version.