Astronomy and Cosmology
Topics related to observation of space and any related phenomena.
3740 topics in this forum
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Hi I have posted thios before but in short just say that parrele universes are proved, and they are layed on top of each other say 1 second behind and 1 second in front and so on. Well i have read on this form to open a sort of wormhole or something to take you to a parrele universe you would need a enormous amount of energy well would the big bang not have produced enough energy to open up such a hole. If so tell me what this mean Sorry if this makes no sense what so ever. Thanks
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We have just been learning about elliptcal orbits of comets and there was a computer model of elliptcal orbits and it showed them slow changing orbital paths so that the oval shape of the orbit slowly rotates around a point and eventually the comet/planet maps out its original path. How can this be if we continue to see the same comets flying past the Earth every 100years or so surely we should only see them every 1000years or so? not very clear...SORRY but I'm very confused.
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I was thinking this same thing the other day and I just found a link. I figured that if the Universe was enclosed "has an edge" then I could look one way and see a galaxy and then look another way and see the same galaxy. This link has some Intrigueing findings.--->http://www.cosmoscode.com/
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Physical Review Letters v78, n3, p424 contains an article by I. Levine, D. Koltick and about 30 others on the electron. The space around the electron contains polarised vacuum charges which shield the core of the electron. By colliding electrons and positrons at high energy, they could eliminate some of the shielding effect and test quantum electrodynamics in this way. They found that for 57.77 GeV collisions, the fine structure constant for an electron varies, with the well known dimensionless coupling factor of 137.035 falling to only 128.5. (If this coupling number dropped to 1, then the quantum electrodynamic force would equal the strong nuclear binding force, whi…
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does anybody here know how to measure how far moon travel in one year?
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I went to a lecture yesterday given by Prof Bernard Pagel on neutrinos and we briefly touched on young galaxies, notable 1 Zwicky 47 which is around 500 million years old and he remarked that the metallicity of the stars were pretty much zero - I briefly discussed with him that I cannot accept that there were huge blobs of primordial matter, from the Big Bang, that was still unseeded by elements higher than Li. He agreed that this was a mystery and that maybe there was some other answers, like all that we see are very large, very old white stars mixed in with small amounts of 2nd & 3rd gen stars. I cannot see how a large and very old white star could remain on the H…
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Well, I need help in a work for school.. I need to explain the expanding of the universe with the big bang using quantic physics.. By some way using Hubble's Theory and what so ever.. Can anybody give me some help? :S Thanks in Advance.. Ursus Maritimus.
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Does anyone know what the celestial ephemeris origin is? Global rotation of the non-rotating origin
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I have got an Idea to test space bending theory right here from earth. But please tell me if this experiment has already been tested anywhere ? I am posting this thread in this forum because it has to do with observations. Look at this image The space is bend near the black hole, if you follow the red line then in the area where space is bend ( or streched ) , U will cover the distance in a shorter distance, right ? Now the Experiment : We have seen many space photos with lens effects. Now, if we can determine the events of the object whoes multiple images are seen; then we should note the delay between events of the different images of the same object. I…
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Hi guys, Could someone possibly tell me what is the first image that an alien race would receive? I'm sure that I read somewhere it is Adolf Hitler at the 1936 Olympics in Munich. Cheers
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This link below explains the structure of Saturns rings which claims that the origin is still a mystery. Some claim they were captured debris from the birth of our solar system. http://www.nasa.gov/home/hqnews/2005/may/HQ_05130_Cassini.html The link below shows "co-orbital" moons. Moons that are in aproximately the same orbit, yet do not collide with each other. They tend to do a "dance" by speed swapping and orbit changing. This was really interesting, and I understand the action, but it made me think of something else. (below) http://www.nationmaster.com/encyclopedia/Epimetheus-%28moon%29 Is it possible the rings of some ringed planets could have come fr…
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Mars Odyssey Themis Images May 23-27, 2005 Meridiani (Released 23 May 2005) http://themis.la.asu.edu/zoom-20050523a.html More Meridiani (Released 24 May 2005) http://themis.la.asu.edu/zoom-20050524a.html Elysium Mons (Released 25 May 2005) http://themis.la.asu.edu/zoom-20050525a.html Cratered Acidalia Planitia (Released 26 May 2005) http://themis.la.asu.edu/zoom-20050526a.html Acidalia Planitia Channel Margin (Released 27 May 2005) http://themis.la.asu.edu/zoom-20050527a.html All the THEMIS images archived here: http://themis.la.asu.edu/latest.html NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Scie…
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When you see scifi movies and some ship is hit by an object they shake and everyone falls and moves around, this is not correct in space gravity on your ship would not throw you to the ground if your ship were struck by somthing youd literally only feel the vibrations and be alerted of it because your ship is not based on a gravity on a planet but its based on your own gravity so you can not likely be falling to anything but rather your entire ship will move in space from newtons law. you see with Yet another crude drawing that the ship with gravity mearly shifts in space but while the ship without gravity throws its astronauts againts the wall because the ship moves and…
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Ok I know the picture is a little hard to make out but i havent had time to make a 3D representation with spheres and such. Anyways you ever wonder how ships in movies stay upright all the time and dont come to another ship upside down? you need a 6 point sun grid to create a zero point axis in space to have a north and south, the suns are used as X X Y Y Z Z you need two of each because space is a 3 dimensional enviroment with no real up and down or left or right. So by graphing 6 suns we can create a North and South and Left and Right In space wich must be universally agreed up on with other worlds and cultures. The suns are chosen because they dont really move unlike …
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This thought has always intrigued me. You look back to the original periodic table made by Mendeleev (this is where the idea first struck me) the elements are alligned by similar chemical properties. "Gruppe" (I'm assuming Group) IV contains Carbon, Silicon, Titanium, Germanium, etc. (For the modern table it would be columns 13, 4, and elements 58,65,90,97) My question is, under what conditions would planets/planetoids/comets/other cosmic bodies be formed where any one of those elements would be a prominent one. Different star types, positions in galaxies, multiple stars, etc. I figure that if life was able to arise once on a planet, it would be able to do so on othe…
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BBC today... moon craters explained by dislodged outer system asteroids freed by two largest planets aligning causing non circular orbits of planets and shifting of all planets distance from the sun... french computer simulation accounts for up to five unexplained solar system anomalies ... thoughts gentlemen please. Publication called "Nature" I think.
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They said it was a revolutionary type of engine that out performs the standard chemical drive on those little space ships that they send up, just how does it work?
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As these are the nearest solar stars like our sun; doe's anyone know if they have a planetary orbit around them? my guess is probably (no) & that we will never find ETI....us.2u
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This download is soooo cool its a 3D sim of about half of our galaxy and if you have any interest in astronomy I seriously suggest you download it. Even with dial-up its worth the wait. Here it is Sim
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In fact, I'm new to all of these forums. I just finished reading Carl Sagan's "Cosmos", and I have to say the chapters pertaining to stars, galaxies, pulsars, quasars, matter of all kinds are extremely interesting. I was wondering though, if this information in the book/movie series has been at all turned against Dr. Sagan since the release in the early 1980's. How much has our knowledge changed about the Universe since the release? Those who have read the book or seen the series, I welcome any comments, and to everyone else, any discussion (especially about galaxies). The Universe is so incredibly vast and deep (physically) that I am compelled to dive into its …
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Is it possible? I mean, it's so huge I'm sure if...it somehow grew a little nucelar fusion would occur, if it did....would it be anywhere near as bright as our Sun, or would it be a red star? Also, is there metallic H at Jupiter's core, and liquid H as you go farther out, and then of course ending with H2? So many questions, it's a debate I have with this other guy at another forum...
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http://news.bbc.co.uk/2/hi/science/nature/4511715.stm Now Saturn is credited with 46 moons, but still far away from Jupiter, with 63
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I believe the burst itself was detected by a widefield sensor on the Swift telescope, which then repositioned itself automatically and was able to catch the afterglow within 50 seconds of the burst. This is the first time a visible-light afterglow from a short-duration burst has been detected (not to mention photographed). There's still a lot of uncertainty about whether the short-duration bursts represent black hole formation events or not. http://www.space.com/scienceastronomy/050509_blackhole_birth.html
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I read there has been found liquid water on Mars, while all findings before were frozen of course. These pictures were leaked and not supposed to be published. Why...??? see pics here
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I just read about this in another thread, and I have a question. Look at the following picture. What are the units on the Y axis. They say DN/s Thanks
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