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Stars.

Or strange matter.

Last year, a report with the first evidence of «Dark Galaxies», entitled "Detection of dark galaxies and circum-galactic filaments fluorescently illuminated by a quasar at z=2.4", using the VLT in Chile, was published in the Monthly Notices of the Royal Astronomical Society.

Scientists consider now that «Dark Galaxies» may had played a major role in stellar galaxies formation during the early Universe expansion, feeding neighboring galaxies with precious gas required to give birth to the first stars.

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10y ago
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14y ago

Yes.There are many other galaxies in space.The one we live in is called the milky way.There are over 500000 galaxies in space, and our milky way galaxy is one of the smallest.Pretty amazing how big space is.I feal very negligible. :(

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14y ago

first,the universe is composed o some heavenly bodies like comets, stars,sun, planets and other biological stats in the universe... in some of the contributions of knowledge about some universal topics,many people know how universe is composed...

  • I DON'T KNOW THE OTHER ANSWERS....

whahahahaha...

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15y ago

Stars are found in great abundance. Our Milky Way, for example, contains some 200 to 400 billion stars. Vast clouds of interstellar hydrogen and other gases spanning light years are another prominent feature of galaxies.

Galaxies also contain dark matter within their halos--beyond the disks in spiral galaxies. What this matter is remains at present a mystery.

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13y ago

yes. we have allready discovered hundreds. and not just in other galexys, there are plenty in the galexy we live in, the Milky Way.

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Our telescopes are barely able to distinguish the brightest individual stars in other galaxies - there is no way to identify which stars would have planets from that tremendous distance away. However, within our own Milky Way galaxy, and even with our limited technology so far, we have been able to identify 400 or more planets circling nearby stars, and there is sufficient evidence of 700 more that are good candidates for closer and more detailed observation. It may be that many or even most other stars will have planetary systems.

So based on no actual knowledge, we can state definitely that SOME stars in other galaxies PROBABLY have planetary systems.

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14y ago

Maybe, but they are too far away...
Yes

We have no way of knowing as yet. If there was intelligent life in other galaxies they wouldn't call themselves aliens, they'd call us aliens.

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13y ago

About 99% of the visible matter in the universe is composed of hydrogen and helium.

Visible matter makes up about 5% of the total. About a quarter is dark matter, and the rest is "dark energy", which basically amounts to scientists throwing up their hands and saying "we don't know what the heck 95% of the universe is, okay?"

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12y ago

About 73% dark energy, 23% dark matter, and 4% normal matter.

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16y ago

That is a mind boggling question...i dont think anyone knows

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13y ago

Outside our own galaxy, in every direction.

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