Astronomy and Cosmology

If Jupiter is rotating in just one direction why are there bands of clouds that move in alternating directions i.e one band travels West to East then one underneath that flows East to West and so on? Thanks

No. Not monopole, but dipole. I used the word “monopole” in some my texts on the following causes: 1. In the LSAG safety reports they investigate magnetic monopoles as one of dangerous objects and made there a crude error, - they said that magnetic monopole will ruin only 10^18 protons and leave the Earth. Their conclusion would be correct, if the Earth had no attracting centers. Because of these attracting centers hypothetical monopoles will never leave the Earth. They will leave the Earth only after the destruction of almost all protons of Earth. 2. Already dozens of years some physicists are planning to use magnetic monopoles as energy sources. Yes, they can ma…

Alright, this is one of those "wouldn't it be crazy if" kind of things. i just came back from a post questioning if space ends, and if so, where? Well, i got to thinking along those lines, and rather not reply to it, but instead broaden my audience. So wouldn't it be crazy if the SUPER ELEMENT (http://www.scienceforums.net/forum/showthread.php?t=45074) imploded at the same time it exploded? That would create a black hole at the center of the universe. Then, the largest star ever forged was the forefront of the explosion of the big bang. a star that instead of being spherical, was more like a ring. I call this, the Oculucius of First Morning. The ring of intense light trav…

I'm having an incredibly hard time understanding the concept of branes. Kaku theorized that in hyperspace there are multiple universes which result from the collisions between points on oscillating membranes.. But what are these membranes? How many are there? How many types are there? How many dimensions do they occupy? Why do these collisions produce universes?

...after it had reached the volume arcording to the planck lang. After the expensation of the universe in the future myby stops the theory of a german theoretical physicist witch name I forgot it will collaps untill it reaches the vollume with the radius of the plack lang and after that there will be a new big bang . But what is with the entropy in this process ? I surgest that after all masses all radiation and therefore all energy is concentrated in this small volume the entropy will have fallen to the same level witch it hat at the former big bang , because it had again reached the level of highest order and in the process of the kontradiction there is no …

Where in the galaxy is this star??? I've searched everywhere and I can't find an answer. What arm is it located in?

How much of the NASA budget should go towards exploration of NEOs with robotic probes and testing methods of deflection? Manned space missions to the Moon or Mars are comparatively costly, and not an imperative. We would look like the good guys to the rest of the world, for a change, if we shifted the emphasis of our future space exploration budget, maybe up to 50%, towards protecting our planet. Even if the probability is very low that we will suffer a major impact in the next few decades, we should vastly expand detection stations and start testing defensive methods long before we ever detect the real thing. How about telescopes on the far side of the moon? They w…

Taken from another forum.

Where does space end? And is there such a thing as a parallel universe? For a science debate issue/project topic.

I have a few questions to astrophysicists and astronomers who have enough knowledge: 1. What do you personally know for sure about the heliosphere texture and functioning? about the difference in space inside and outside heliosphere? 2. What are the unexplained phenomena that (you believe) would be explained if we could get more data on heliosphere and its exterior? 3. How do you personally explain the Pioneer anomaly? the Kuiper cliff? the Eridanus Supervoid ?

Does gravitational redshift happen to Jupiter? if so, has anyone ever detected it? Thanks.

Ok. As many of us know, the larger an object is, the more powerful the gravitation field. Also, the closer two object's are, the stronger the gravitational attraction. So, here's what doesn't make sense to me. Look at the planet Mercury. It's a reasonably large planet, and the closest one to the Sun. It's close enough to stay in orbit, yet far enough not to get sucked in by the Sun's gravity. Then, look at Pluto. It's like 10 times as far from the Sun as Mercury, and way smaller, and yet it doesn't drift off? So, my question is, how is that the Sun's gravity is weak enough to not suck in Mercury, yet strong enough to keep Pluto in orbit?

I had noticed a strange feature in an arrangement of the planetary orbits, externally reminding the orbital resonances, known already of some centuries http://en.wikipedia.org/wiki/Orbital_resonance . To notice existence of orbital resonances is simply. It is the commensurability of the periods of two bodies at which their orbital periods is close to rational numbers with small numerators and denominators. My commensurability not lays on a surface. Probably, many noticed an amusing thing. If to send a rocket to an orbit of the Venus, it, having made 5 turns, will come back to the Earth on which will pass 4 years. It is the orbital resonance 4/5, but not between direc…

After reading a number of scientific articles about far distant galaxies and the estimated age of the universe I began wondering how we could supposedly see light from objects that are 12 billion light years or so away. This is supposed to be light from nearly the beginning of time and space. If we agree to believe that the big bang actually happened then this would mean that at some point we were much closer (cosmologically speaking) to those distant objects. Since matter travels at a mere fraction of the speed of light is seems somewhat dubious that any light emitted from that object at the beginning of time, as we know it, would not already have p…

;)The Black Hole Theory as proposed has a couple holes in it, so to speak... It is practically impossible that a Black Hole is a portal to another dimension/plane/universe/world or wherever (Heaven/Hell??). Everything that has form gets destroyed and there in fact remains only extremely condensed matter/energy over on a relatively very small amount of space. The best idea so far is that different Universes exchange energy with each other through Black Holes to maintain a certain equilibrium in the Multiverse... however, you, I or anything which gets pulled towards it is effectively 'killed'. The only remaining possibility as a portal is if your spirit goes through it... w…

Forgive me for stumbling through this a bit... or using slightly incorrect terms. Somewhere, 5 miles underground in an old iron mine 2 scientists are playing ping-pong while they wait for a graviton to appear and then vanish supposedly proving that parallel or alternate universes exist. Does this ring a bell with anyone? My understanding is that it is believed that gravity is shared by parallel (and/or alternate?) universes -- I don't know ‘why’ this would be but, let’s assume there are strong reasons. After all someone has spent a lot of money to look for a graviton and see if it leaves our universe and enters another. Okay… set this aside for a moment. On…

ok this is my last post before I go to bed and sleep it off, I swear. Gravity seems to be the big problem in all of quantum physics, and throws a big wrench into all the models they've proposed to explain it in terms of EM forces like light, magnetism, strong/weak forces. But gravity propagates itself on an inverse square law rather than an inverse cubed law like the EM forces, right? Doesn't this suggest that gravity is a symptom of something else? Quantum entanglement has been proven to bypass speed of light laws already, if I remember correctly. We could probably find support for quantum entanglement as a cause or factor in gravity by causing a massive particle to…

Hi All, I am new to this forum. I have a question that may well have been explored before : "If space is expanding and it is expanding everywhere, does that mean that the space within an atom is expanding also. If so, has anyone ever calculated how long it will be before the forces holding the various parts of an atom together no longer work" Stupid question ? Dart15

Hi again, Has anyone heard of any theories of research done into the effects of vacuums or voids on space/time and/or the expansion of the universe? Put another way, in visualizing the bending of space/time on one of those flat plains showing a funnel like indentation to show how the Earth bends space/time and creates a gravity well, lets expand that display to show two widely spaced galactic clusters, the space between them and, off to the side one of the large voids (i.e. Northern Local Supervoid). Would either the space between the two clusters or the void show a 'dimple'? That is, instead of an indentation would we see a rise or peak where the mater thins ou…

http://scienceblogs.com/catdynamics/2009/09/water_water_everywhere.php http://marsprogram.jpl.nasa.gov/mro/newsroom/pressreleases/20090924a.html Photos of fresh meteorite craters show a reflective white material which goes away over the course of a few weeks or months. This is in the mid-latitudes. So it is not limited to near the poles. The depth of the crater can be estimated at a few meters. These are small meteorite impacts. Spectrograph confirmed that it is H2O The ice layer is apt to be fairly widespread. Scr*w the moon. Mars is where the real water is.

In trying to calculate the theoretical mass of the matter neccessary for the universe to be a singularity the only previous potential was to include dark matter of roughly 1/2 of the known matter. Is it possible to work backwards in time and show that when the 2.7 degree background reaches its limit of zero what the radius of the known universe would be?

Can anyone tell me what the very bright object in the sky south of Los Angeles approx. 30 to 40 degrees declination ? It seems too bright to be a planet. Time is 10PM. Thanks.

http://www.astronomynow.com/news/n0909/18mars/ Can magnetite Fe3O4 really be transformed into hematite Fe2O3 through a purely mechanical process? Magnetite consists of a mixture of iron(II) and iron(III), and hematite is just iron(III), so somehow there's a room-temperature redox process going on? Cheers, Mike

Hello everybody, I'm new here, my name is Teo Braun, I’m not a scientist or something like that, but recently I have become very interested in dark matter, so I did a lot of information digging about the problem and I think I’ve solved the problem. I will try to explain my train of thought the best I can. To solve the problem I didn’t use any theories, just facts and particles we already know. So, we don’t need supersymmetry, string theory, new undiscovered particles nor do we need modified gravity. I just used knowledge we already know and pieced them together. We invented dark matter to solve two problems. Velocities in galaxies and clusters of galaxies, to be …

http://www.eso.org/public/outreach/press-rel/pr-2009/pr-32-09.html Ever wonder where the Eagle Nebula is in our galaxy? Check it out.