Anyone heard of 'dark energy'?

Question

no i dont mean like bad karma or anything like that. i found an article in parade magazine that said they believe they have found something called 'dark energy' that makes up like 2/3 of the universe and that it is in a field of quantam physics. anyone heard of it or can provide more info?

Answer 1

Shhhh it is true...

Scientist looked into cosmological aspects of the universe and were surprised to find that the planets furthest from the center in the galaxies are moving as fast as these that are closer to the center. The only explanation is that there must be a mass that we can't see. Just about over 90% of mass that we can't see! More that mass is not made of matter as we know it. Scary thought ha? These planet and galaxies should be moving slower the further they are away from the center of the galaxy or the universe, but they are not. That means that the Universe is expanding.

So "dark energy is a hypothetical form of energy that permeates all of space and tends to increase the rate of expansion of the universe."

This is a young and interesting topic. Have fun

Answer 2

I have seen this on the Science Channel about a year ago. They were saying the size of our current uniniverse contains a certain amount of energy. however this don't account for everything in our universe. All that empty black space we see is not empty at all, is the belief. They are thnkng it is a form of energy that they are calling dark energy, when this is figured in it comes very close to what one would expect.

It is like filling a bushel basket with apples. Now calculate the volume of that basket and you will see that the apples alone do not account for all of its volume so something has to be filling up the rest of it.

Answer 3

Dark energy is like unseen or undetectable energy and mass or either energy or mass. It is dark as it is not possible to detect or "see". Quite far past energy zones that we allele.

There was a feed not too long ago that claimed the capture of a dark matter ring or halo surrounding a galaxy cluster. You could try looking it up on google.

The current state of physics speculate that these energies exist, however there is no concrete evidence that it does. The existance of dark matter is salubrious to the Big Bang theory and explains why the Universe is expanding instead of contracting.

Answer 4

Dark matter is the set of fundamental particles in quantum physics that does not interact through quantum electrodynamics (one of the four fundamental forces). Almost everything we, as humans, see and feel relies on quantum electrodynamics - electricity, light, magnetism, et cetera. It's what keeps you from falling through the floor. If something doesn't interact through that particular channel, we can't see it with a telescope. After all, radio waves and x-rays are light. Can't see something with an x-ray observatory or a radio telescope if it doesn't reflect or emit any of that.

And it's still just a theory - it's very difficult to prove something is out there when you can't observe it directly. Other, indirect experements must be preformed in order to confirm it.

Answer 5

Actually the discovery of "dark energy" has nothing to do with "dark matter", which is what the two previous answers were about.

Dark energy does make up 75% of the entire Universe's energy/matter content.