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What else can I help you with?
What the entire universe called?
The universe is the term used to describe all of space, time, matter, and energy that exists. It includes planets, stars, galaxies, and everything that we can observe or detect through scientific methods.
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.
Diameter of the universe?
With current technology, astronomers are able to detect objects (galaxies) out to about 14 billion light years from us in every direction. We don't know what's farther than that.
How many galaxies can we see in the observable universe?
Oh, what a lovely question! In the vast observable universe, scientists estimate that there are about 100-200 billion galaxies for us to see. Just imagine all those galaxies out there, putting on a cosmic masterpiece for us to admire. How delightful!
Are there more galaxies in the universe we haven't seen yet?
Yes. An example was the recent photograph by the Hubble Space Telescope of an apparently blank area of sky. Lots of new and distant galaxies appeared that we had never seen before. As we get bigger telescopes (especially in space), we will discover more.
Are black holes detected in the universe?
YES!!! How would we know they are there if we did not 'detect' them.
Which galaxy are planets in?
It is possible that every galaxy has some planets. We just are starting to detect some planets in other galaxies.
Explain why astronomers consider elliptical galaxies more abundant than spiral galaxies even though more spiral galaxies have been sighted?
Astronomers consider elliptical galaxies more abundant than spiral galaxies because they are more prevalent in the universe's large-scale structure and are often found in dense environments like galaxy clusters. While more spiral galaxies have been observed, this is partly due to selection bias, as spirals are more visible at certain wavelengths and are often located in less crowded regions. Elliptical galaxies, on the other hand, tend to be older and can be more difficult to detect, leading to an underrepresentation in observational surveys. Additionally, the processes of galaxy evolution suggest that many spirals may eventually evolve into ellipticals over time.
How many solar system in the universes are there?
There are on the order of 100,000,000,000 (one hundred billion) galaxies in the universe, as far as current telescopes can detect. Some of these galaxies may hold up to 100,000,000,000 stars, but most galaxies probably contain at least 10,000,000,000 stars. Young galaxies under 2,000,000,000 years old may not have formed many solar systems yet, while very old galaxies more than 10,000,000,000 years old may have very few galaxies left. For the galaxies of middle age, as many as 1/4 of the stars may possess solar systems. My comment: While the answer above is true based upon current knowledge, it is essentially incorrect. The answer to your question is: ONE. Our Sun is named Sol - and the system of planets and other objects orbiting it are referred is referred to as "Solar", being of Sol. So other planetary systems exist, but they are not "Solar"... Comment: The above is incorrect, the answer above is for our known universe not the entire universe. There may be even more. The universe doesn't have a known edge, or a wall so, it's really hard to say. It would be possible to even say infinite, though scientists really hate the word infinite ;)
Is there planets in other galxis?
We don't have the means to detect or observe planets in other galaxies. But so many hundreds of them have been discovered in our own galaxy that it's a safe bet that other galaxies must have them too, in abundance.
Why is it that call a collection of matter that does not interact with anything else in the universe?
The term for a collection of matter that does not interact with anything else in the universe is "dark matter." It does not emit, absorb, or reflect light, making it invisible and difficult to detect directly. Scientists infer its existence based on its gravitational effects on visible matter and the large-scale structure of the universe.
How is dark matter created and what are its properties?
Dark matter is believed to have been created shortly after the Big Bang. It does not emit, absorb, or reflect light, making it invisible and difficult to detect. Dark matter interacts with gravity and is thought to make up about 27 of the universe, influencing the formation and structure of galaxies and other cosmic structures.
