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Recent results from very bright supernovae in very distant galaxies seem to indicate that the expansion of the universe?
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What heavier elements in the universe were formed by what?
They were formed in supernovae.
What is the difference between galaxies and the universe?
A universe is a very big realm of darkness with galaxies in it. and there are billions of galaxies in the universe! One of those galaxies is our solar system, and in that solar system is our planet. There probably is even more then just one univserse. O_o Well... Galaxies are within the universe and a universe is defintly bigger then a galaxy
How do astronomers locate other stars trillion light years away?
They can't. The universe is only about 13 billion years old. If there are galaxies a trillion light years away their light has not reached us yet and due to the expansion of the universe, never will. At the edge of what we call the observable universe we cannot make out individual stars, but we can detect galaxies using infrared telescopes.
What two quantities did Edwin Hubble compare to discover the expansion of the Universe?
The Serperation of Galaxies which was caused by Dark Energy, and the Big Bang.
Why do you need to learn about the solar system galaxies and the universe?
We need to learn about solar system, galaxies and universe because it will help us in the future....
Are galaxies important?
Galaxies are very important in the expansion of the universe.
Are galaxies are moving around the centre of universe?
No. They do move away one from another, due to the expansion of the Universe.
What is the evidence for dark energy?
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.
How does the galaxies move in the universe?
The general tendency is for galaxies to move away from one another - the further apart they are, the faster they move away from one another. In other words, the Universe is expanding. Galaxies also have some "random" proper movement, which can be thought of as superimposed on this general expansion.
How do you know that the universe is 13 billion years old?
This is mainly an extrapolation of the expansion of the Universe. That is to say, the Universe is expanding at such a rate that the galaxies (or the matter that didn't convert to galaxies yet) would have been very close together 13 or 14 billion years ago.
What the difference between universe and galaxies?
A universe is a very big realm of darkness with galaxies in it. and there are billions of galaxies in the universe! One of those galaxies is our solar system, and in that solar system is our planet. There probably is even more then just one univserse. O_o Well... Galaxies are within the universe and a universe is defintly bigger then a galaxy
What can supernovae tell us about the history and possible future of the universe?
If there's a supernova, everything around it comes into dust, and another billions of years of journey start and new galaxies are being created.
Does Every Galaxy Merge Eventually?
The answer to this is we do not know but it looks unlikely.The expansion of the universe appears to be speeding up. Local Galaxies might merge into larger galaxies but these galaxies will expand faster and faster away from each other.
Are there other galaxies in your universe?
there is only 1 universe and their is billions of galaxies in it !
The heavier elements in the universe were formed by .?
They were formed in supernovae.
What heavier elements in the universe were formed by what?
They were formed in supernovae.
Is the universe contained in the galaxy?
The universe contains countless galaxies, think of the universe as a galaxy of galaxies.
