Pulsars, black holes, spiral galaxies, bar galaxies, supernovas, red giants, white dwarfs.
Right in our backyard the Andromeda galaxy is our closest neighbor. But did you know that in our Milky Way Galaxy there are 235 planetary bodies, of which 169 moons are in our Solar System? These 169 moons are the well documented satellite moons of the 9 planets. Jupiter alone has 63 moons. The challenge lies in how we can build atmospheres on them to support human life and all other living things. Also, we have to weed out the ones that are inhospitable.
Venus=0, Earth=1, Mars=2, Jupiter=63, Saturn=60, Uranus=27, Neptune=13, Pluto=3
The trick is to categorize them into planets/moons that either spin on their axis, or don't. Then, increase the surface gravity by inserting a Superconducting Magnet into the core. The magnet would range from 2 Tesla to 15 Tesla, depending on the amount of iron/nickel that is present in the core.
Finally, to introduce atmospheric gases into the man made electromagnetic bubble.
This website gives the exact location of each of the moons of Jupiter: http://www.ifa.hawaii.edu/~sheppard/satellites
and this site tells us how to make an ATMOSPHERE on all the moons: http://www.atmospheres.5u.com/index.html
2007-08-22 19:28:29
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answer #1
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answered by princess leia 4
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If you're talking about stuff that we can see, or detect, then the universe is mostly composed of billions and billions of stars. Red Giants, White Dwarfs, Neutron Stars, Black Holes, and just regular old Sunny stars. Sometimes around these stars we see planets and comets. We also have noticed an abundance of space debris in some areas of the Milky Way, making it harder to view parts of the universe.
However, the majority of the gravitational effects we feel in this galaxy is due to dark matter. Do not be confused. Dark matter is not a mysterious or mystical thing. It is simply matter that is too dark for us to see, such as a dead white dwarf, or a very dim star, or maybe planets and debris. Do not confuse it with Dark Energy, which is said to be the cause of accelerating space expansion (very mysterious indeed).
Now, beyond our galaxy, we see other galaxies. We are in a local group of about 4 or 5 other galaxies, like Andromeda. Between the galaxies are mostly voids, which contain about one hydrogen atom per million square feet (or something ridiculous like that). These voids are the most empty parts of our universe. They exist between our galaxies in our local group, and in between other groups.
Now, here we are, on Earth, in the Solar System, in the Milky Way, in the Local Group. Now our group and many other groups are all being pulled into a HUGE group the size of billions of galaxies (which each contain billions and billions of stars). This HUGE group is known as the Great Attractor.
Hope this has been helpful.
2007-08-23 02:28:38
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answer #2
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answered by fidgetyacolyte 1
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We must discount both Dark Energy and Dark Matter, neither has ever been verified. The majors components of the universe are the three basic particles that make up all matter, the proton, the neutron and the electron.
2007-08-26 20:28:37
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answer #3
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answered by johnandeileen2000 7
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There are at least four ways of answering this question:
- In terms of the broad classification of components into baryonic matter, dark matter and dark energy (the first type being the matter we see around us, the latter two being subject of some conjecture); as noted by Captain Paradox;
- In terms of the components of matter (elements) and their abundance (hydrogen making up over 90% of all matter, Helium a few percent, and the other 90 naturally occurring elements a minor percentage); as noted by Ronin;
- In terms of how the universe is organised; into vast intergalactic spaces containing nothing; galaxies and groups of galaxies that are gathered into aparrent mega-structures (still the subject of study); and structures within galaxies, their shape, and their composition of gas clouds, star systems and void space between. At a finer level, there is structure to the stars themselves, and any planetary systems they may have.
-Or in terms of how the universe evolved over billions of years from a 'big bang', and how it came to have its current expanding structure.
2007-08-23 02:28:31
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answer #4
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answered by AndrewG 7
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u hav to be more specific. do u mean what elements or what? well anyways, the universe is made up of matter. and 97% of the universe is contains hydrogen, and 40 some % contains helium. so until u can be a little more specific of what ur asking, thats about all i can say. of course i could say a LOT more but i dont wanna type that much.
2007-08-26 19:56:25
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answer #5
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answered by shish2kabob 2
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be more specific.. i think i know what you're talking about. A great deal of the universe is made of hydrogen, hydrogen is the main element in stars, but by far most of the universe is nothing, no matter at all.
2007-08-23 02:09:38
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answer #6
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answered by Anonymous
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The universe is composed of:
* 4% ordinary baryonic matter
* 22% an unknown type of dark matter, which does not emit or absorb light.
* 74% a mysterious dark energy, which acts to accelerate expansion.
2007-08-23 02:08:06
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answer #7
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answered by Anonymous
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On another scale, its all made of fermions (quarks, leptons) and the force-carrying bosons. Lots of 'em. And some space-time to play on.
2007-08-23 06:19:22
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answer #8
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answered by SAN 5
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hydrogen and helium
2007-08-23 02:08:32
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answer #9
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answered by Anonymous
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