2007-08-20 16:33:22 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Energy that doesn't seem to be there.
We know it exists because the expansion rate of the Universe since the big bang hasn't slowed down, but is increasing.
When astronomers weigh the Universe and try to calculate the entire energy of it they come up far short of what the perceived effects are. In an effort to make up for this they called it Dark Matter and Dark Energy.
News Flash; Most of our universe is missing?
The speed of expansion and the effects of the energy that we see don't agree with the amount of matter and the amount of energy we can detect. See my answer (#4) for this question and you will get more: http://answers.yahoo.com/question/index;_ylt=AiH.0MToqeLdEoMwyiFyQRHty6IX?qid=20070820184439AACaMr8&show=7#profile-info-ZjSXwHoXaa
Basically, we can't see all the higher dimensions so we can't see what is in them. We have theory that says they exist, but we are not built to understand them. Therefore it is not unusual that there could be something in those higher dimensions that we can't detect. We simply lack the senses or the understanding to detect them.
We have found proof that dark energy exists, so that means that dark matter probably does exist. We don’t know what it is, and we may never know. We infer its existence because we see the effects of it on our world. But, where it and what it is is still unknown.
2007-08-20 16:39:57 · answer #1 · answered by Dan S 7 · 1⤊ 0⤋
First, don't confuse "dark energy" with "dark matter" as DAN S seems to have done.
Dark energy is some unknown energy that appears to be causing the expansion rate of the universe to increase, instead of slowing as common sense says it should. Astronomers discovered this phenomenon when they found that certain supernovae in extremely distant galaxies were dimmer than they should have been, therefore they were farther away than the 'normal' expansion of the universe would account for. See this website for more about this ==>http://www.lbl.gov/Science-Articles/Archive/Phys-HST-supernovae.html
2007-08-21 00:34:11 · answer #2 · answered by Chug-a-Lug 7 · 0⤊ 0⤋
sounds like a spin off of red bull or monster energy drinks
2007-08-20 23:40:59 · answer #3 · answered by Anonymous · 0⤊ 2⤋