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Is this universe accelerating decelerating or remaining constant?
Wiki User
∙ 10y ago
We might EXPECT that the rate of expansion might be slowing due to gravity, but the fact is that we don't have any idea. Is there such a thing as "dark energy", and if so, does it act repulsively? We don't have a clue.
But hold that thought; we may find out in the next 50 years or so.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoThe rate of expansion of the universe is speeding up. The actual rate of this expansion is not certain, but various calculations range between 66 and 82 (km/sec)/Mpc [where Mpc is a Megaparsec]. The best estimate is considered to be 73.5 (km/sec)/Mpc [+/- 3.2 (km/sec)/Mpc)].
Wiki User
∙ 10y agoSince the 1990s, astronomical observations have indicated that the rate of the universe's expansion is increasing. Because the source of the accelerating expansion is not yet known, it is referred to as dark energy. Also, because it seems to be uniformly distributed throughout space (and not clumped into galaxies, like normal matter, for example), it is believed to be the dominant source of mass in the universe (based on mass-energy equivalence) easily outweighing all ordinary matter.
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What is an accelerating universe?
An accelerating universe is a theory which describes and seeks to explain the increasing rate of the expansion of the universe.
Dark energy seems to be accelerating the expansion of the universe causing what?
That means that the Universe expands faster and faster. It causes the Universe to grow, and the general density of matter in the Universe to decrease over time.
IS the gravitaional constant of moon is same as earth?
Yes. All astronomical observations to date suggest that the gravitational constant is literally a universal constant ... the same everywhere in the universe.
How was the cosmoligical constant proved wrong by Hubble?
Albert Einstein's cosmological constant was proved wrong by Hubble as he proved the universe is expanding so it doesn't need a constant to stop it imploding.
Why the age of the universe equals 66.6 percent of hubble time?
As far as I understand, the projected age of the universe is about 99.5% of the estimated "Hubble time". The age is projected by applying a correction factor to the inverse Hubble constant. The correction factor applied depends on the value of the cosmological constant. The constant is derived from WMAP observation data, and valued at 0.976. For a flat universe without cosmological constant, the value would have been 0.666, resulting in a projected age 66.6% of the Hubble time.
If the hubble constant H is larger at great distances then what is happening?
The Universe is expanding at an accelerating rate.
The amount of energy in the universe is?
The Total amount of energy in the universe is E=mc2 =1.9 E70 Joules.
What is accelerating universe?
An accelerating universe is a theory which describes and seeks to explain the increasing rate of the expansion of the universe.
What is an accelerating universe?
An accelerating universe is a theory which describes and seeks to explain the increasing rate of the expansion of the universe.
Where in the universe is there no force?
As a layman my thought is that there is no place anywhere in the universe that is free from force. Even in the remotest reaches of inter-galactic space, an unimpeded object would be experiencing many forces. It's just that the forces would be balanced. The object would not be accelerating and it would not be decelerating.
Which model of the universe requires the concept of the dark energy?
The one where the universe is expanding and accelerating.
What is a component of the universe that seems to be counteracting the effect of gravity and accelerating the expansion of the universe?
Dark energy.
Is the universe still expanding?
Yes, and the expansion is accelerating - it is expanding faster and faster.
Can energy grow on its own?
In classical Newtonian physics - no. In classical Quantum Mechanics - no. However in the still uncertain realm of the accelerating universe and dark energy there is speculation that the conservation of energy (the most sacred of rules) may not be constant.
Dark energy seems to be accelerating the expansion of the universe causing what?
That means that the Universe expands faster and faster. It causes the Universe to grow, and the general density of matter in the Universe to decrease over time.
What was the greatest mistake he ever made according to albert Einstein?
Adding the cosmological constant to his Theory of General Relativity.More Information:Something keeps the universe expanding at an accelerating rate, we call this something unseen force or dark energy.After measuring and studying the effects of this energy, it appears that it has been a constant force for the entire life of our universe. This force may be something that emanates from spacetime itself. - - A constant force!? - - Maybe a cosmological constant!? - - He may not have understood it or properly quantified it, or even believed in it, but maybe Einstein got it right.
What are the twenty constants of the Universe?
I only know of two constants in the universe. One is time which is an invariable constant and change which is a variable constant.
