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In 1998 the Hubble Space Telescope observed distant type 1a supernovae which showed astronomers a phenomena which accelerates the rate of expansion of the universe. It hasn't been declared as a 'discovery' as such because there is still a lot of disagreement over the idea and also the data received was fairly weak.
But the answer to your question is 1998. :)
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∙ 14y ago
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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.
Does dark energy affect the size of a universe?
Yes. Due to dark energy, the Universe is expanding faster and faster.
What is the opposite of Dark Energy?
There is no opposite of dark energy in the sense that there exists something that is the exact opposite of dark energy. Dark energy speeds the rate of expansion of space, even empty space, and gravity, mass, or matter causes the opposite in that it causes a decrease in the rate of expansion of space in areas that have matter.
Why is dark energy so weak?
We do not know what dark energy is, so we can only theorize about its sources. However, if dark energy were much stronger than current observations estimate, life would not be possible. Therefore, we can say dark energy is weak in our Universe, because our Universe is capable of supporting life.
How does light and dark reactions correspond with parts of a leaf?
Dark reaction needs energy. this energy is supplied by light reaction
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.
What is the difference between dark energy and dark matter and what are the inferred affects of each?
From my studies dark energy creates electrical phtons making a stonger pull to the source than dark matter does. In fact, I think that dark energy can power a car, but sadly it is impossible to harness dark energy. I'll have to do little more research to be sure.
Does dark matter/energy responsible for the expansion of the universe?
Yes. Dark energy is responsible for the expansion of the universe.
What is agegraphic dark energy and what is conform time in new agegraphic dark energy?
Agegraphic dark energy is the name of a particular mathematical model for dark energy. The name appears to have been chosen as a callback to another model ("holographic dark energy") and the fact that in the ADE model, the age of the universe is a parameter. The conformal time is a parameter in this model; the energy density of the universe is inversely proportional to the square of the conformal time.
Does dark energy affect the size of a universe?
Yes. Due to dark energy, the Universe is expanding faster and faster.
