Dark energy? Only qualified astronomers need to answer. Thanks to others.?

Question

Where does it come from?
What is the source?
What it is doing in the universe?
What’s the impact?
What’s the proof?
What’s the measure?

Answer 1

Dark matter is something we astronomers invented to explain the fact that the arms of galaxies rotate locked in step with the center .
Without dark matter the arms would fly off.
There is absolutely no proof that dark matter exists,it a theoretical entity and may not exist.
Some of my colleagues are irate with me because I told them a galaxy may not be a satellite system and dark matter may not be necessary.
I know that our solar system is a satellite system so the planets must slow down as the get farther out,so we don't need dark matter for them.
The universe,except for a slight quantum effect is perfect.
During it's evolution it knows how to treat a satellite system and how to treat a rotating galaxy.
We may eventually find out more about galaxies and we will be able to dispense with the cumbersome dark matter.
Billy the astronomer.

Answer 2

Dark energy. There's a story to this thing. Dark energy, dark matter is also said to be the same thing as ANTI-MATTER. When scientists actually saw the current boundaries of the universe and calculated the mass of the whole universe, they figured that it was only 50% of what is ACTUALLY SUPPOSED TO BE THERE. So like they could only find 50% of the universe's matter. Since 50% is missing and 50% is found, scientists believe that dark matter or anti-matter is the rest of the 50%. The anti-matter is a problem still in the research labs, but Black Holes are believed to cause them. It's not doing anything in the universe, well, maybe probably eating up other matter( Black Holes). Anti-matter is believed to have come from the BIG BANG theory, the forming of the universe.

Two interesting possibilities of what Black Holes do: first they eat the matter and "kill it" by destroying every atom existing in it and then a certain amount of mass will form and on the other side a "bubble universe" will come out( universe in a bubble). The other thing is that it can eat you and send you in another place in the universe or eat you and send you into another dimension.

Answer 3

Dark Matter,
Where does it come from: Unknown
What is the source?: Unknown
What is it doing in the universe?: Unknown ( to me )
Whats the impact?: The impact is: at the current rate, if we find packs of Dark Matter larger than one cubic foot, our universe will expand to a point, and then collapse in on itself. A.K.A.: The Big Crunch.
What is the proof?:We have found atoms that are negativly charged, whereas normal matter is posivitly charged.
Whats the measure: You ask the wrong person.

Answer 4

Einstein had included an "anti-gravity" effect in his theory of general relativity, in his so-called cosmological constant. But Einstein himself, and later many other astronomers, came to regard this as a kind of mathematical contrivance that had little relationship to the real universe. By the 1990s no one expected that the effect would turn out to be real.

Still, anti-gravity isnt the right way to describe dark energy."It does exactly what general relativity says it should do, if it has negative pressure.

one observational evidence of dark energy is the changes in the cosmic expansion rate with the observed rightness-redshift relation of "type Ia "supernovae.Using type Ia SNe as standard candles to gauge the expansion of the universe & observers have found that it is currently accelerating

Answer 5

not all astronomers are asleep. my wife woke me up an hour ago. Hahahaha, ok dark energy is known to exist but not much more is known than that. the strongest evidence for its existence is the fact that the universe is not only expanding but the expansion is accelerating, therefore there must be some dark enerygy we cannot "see" that is causing this acceleration. its source is the universe itself and its measurment its proof and its impact is the expansion of the universe. i hope this helps!!!!!

Answer 6

Even "qualified astronomers" (..whatever that is..) will answer your questions 'unknown' or theories.

1."Where does it come from?" Unknown

2."What is the source?" Unknown

3."What it is doing in the universe?" What it's doing TO the universe is to increase its expansion rate.

4."What’s the impact?" See 3 above

5."What’s the proof?" Observation of very distant type 1A supernovae showed them to be dimmer than they should be http://www.astronomy.com/asy/default.aspx?c=a&id=2103

6."What’s the measure?" 1.3 × 10-15 km / s2 per Mpc http://www.physicsforums.com/showthread.php?t=110232

Answer 7

Dark energy is at the moment a hypothetical form of energy that is present in all of space. The effect of dark energy can be seen because the universe is expanding at an accelerating rate.

Answer 8

we've said explosions on earth and we've said explosions in area, so we've a exceedingly sturdy idea of ways count number, and power, ought to amplify after an explosion.... the universe is increasing in a fashion which does no longer precisely fit the form we've, or the information we've received..... to make up the "distinction" or clarify the "discrepency", scientists coined the word "darkish count number" which truly basically ability "mass that could no longer illuminated or lit up indirectly so as that we are able to work out it or honestly perceive it." darkish thus ability unknown like the "darkish a at the same time as"... all we truly know is that some form of count number and power exist and are unaccounted for, in accordance to our observations..... they are going to stay "darkish" til we locate direct information of them

Answer 9

because qualified astronomers would be on this site at 6 am? how would they let you know their qualifications?

google it. the smart astronomers are all asleep.

Answer 10

heather,
doesn't it make sense to you that astronomers would be awake when it's dark? they can do their job better if they can see the sky!