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The most direct evidence comes from supernovae observations in remote galaxies. Astronomers can use supernovas as 'standard candles' because the light we receive from them always follows the same pattern with time, allowing us to deduce how bright the supernova really is and by comparing it to how bright it appears on the sky, work out how far away it is.
Light from distant galaxies is also red shifted by the expansion of the universe and the red shift tell us how far way (back in time) the galaxy is and the rate of the expansion of the universe.
When astronomers calculate the expected amount of red shift for the supernovae based on how far away we know they are, they appear to be too strongly red shifted to account for the calculated expansion rate of the Universe. This means that the expansion of the universe is accelerating (which requires an energy to drive it). This energy is "dark energy".
There is also other, indirect, evidence for dark energy.
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If there are the areas of 'nothingness' in outer space what actually is there?
These areas of "nothingness" are mostly empty space, with a few stray atoms and other particles. There is also evidence for something called dark energy, which is somehow connected to the expansion of space. Scientists still do no know what this dark energy is.
What are the release dates for Dark Evidence - 2013?
Dark Evidence - 2013 was released on: USA: 12 December 2013 (internet)
What actors and actresses appeared in Dark Evidence - 2013?
The cast of Dark Evidence - 2013 includes: Diana Dezube as Detective Nora
What evidence has led scientist to predict that the universe will continue to expand forever?
dark energy...anybody else having a super hard time in math? ya i am.
Which is thought to be more prevalent in the universe dark matter or dark energy?
Dark energy. The current estimates for the distribution of mass/energy in the Universe are approximately: 68% dark energy 27% dark matter 5% baryonic (i.e. "normal") matter
When was Dark Energy Digital created?
Dark Energy Digital was created in 1998.
Can Astronomer's directly detect dark energy and dark matter?
Dark matter and dark energy have NOT been detected yet, so any ideas about detecting dark energy and dark matter, whether it be directly or indirectly, is speculation for now.
What does dark energy seem to be doing?
Dark energy is the force that is driving the expansion of the universe
When it is dark does solar energy work?
Solar energy can be USED in the dark, but cannot be collected .
Is the universe matter?
The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.
What percent of the universe is made up of dark energy?
Dark energy -- whatever it turns out to be -- constitutes about 74% of the energy in our Universe.
If light is energy then what about dark is it also energy?
Dark is the absence of light. Dark is nothing itself other than the absence of light.
