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What exists in intergalactic space? Are there stars in these expanses?
Space is not empty. It is not a complete vacuum. Even between stars and galaxies there exists gasses and dust. In intergalactic space the material will be very diffuse. Also,...
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Are there intergalactic planets without solar systems?
A planet can get ejected from a solar system by the gravitational pull of its sun, another planet or another star passing through its solar system. There are problems with...
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Do stars exist in space between galaxies or are stars confined solely to galaxies?
It's very rare but a star can be created outside a galaxy. I don't have any examples but they exist and it's rare.
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How do us humans know that there are millions of other galaxies? If galaxies are millions of years apart, how do scientists know that there are billions of other galaxies and that andromeda is the closest?
There are a ton of extremely powerful telescopes both here on Earth and in space that is capable of looking billions of light years far. And we can see a...
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The Hubble telescope captured galaxies in the eastern direction of the universe. Images came back proving that galaxies are made up of different colors. What would explain the reason for the make of colors in galaxies?
Galaxies early on in their lives are actively forming hot, new stars and appear more bluish. Older galaxies are forming fewer new stars and their constituent stars are older on...
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Is our solar system moving? If so, is our solar system being attracted closer to any other solar systems?
Our solar system is moving along with the galaxy of course. It is also moving, though rather slowing, within the galaxy. We do not have a good grasp of other...
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Galaxies are millions of light years away and we are able to capture images through cameras in telescopes. Do scientists leave the telescope pointing at space until the galaxies slowly start to appear? Or do they zoom in into space?
A few galaxies are bright enough to see something of them with the naked eye. For example, in the northern hemisphere we can see the centre of the Andromeda Galaxy...
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Will intergalactic space travel and space habitation be possible within the next 1000 years?
Intergalactic travel maybe possible within the 21st century. Astrophysicists have already given ideas, such as the space warping spacecraft (which could allow it to travel faster than light without breaking...
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What types of propulsion systems would be needed for intergalactic space travel to become feasible?
Einstein's theory of relativity states that nothing can travel faster than the speed of light. In fact for any object with mass it requires an infinite amount of energy to...
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If there are an infinite number of stars and infinite number of galaxies, what fills space between two different galaxies?
From recent discoveries of astronomers, they have found out that dark matter is responsible for , and dark energy fuels the dark matter. But dark matter and dark energy are...
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