Is it possible that all the planets their moons and the sun form an eclipse?
968337
the answer is actually no, i say this as i assumen you a refering to a total eclipse. this is when the moon covers the sun and makes everything go blck. there are however partial eclipses(eclipse) on all planets as this is when some object(moon or planet) blocks some of the sunlight from the planet or moon. \n\nwe have an odd situatin when the distance from the sun and the moon to earch exactly match the size of the rays hit by the earth from the sun. that means that the moon as big as it is is just the correct disstance to cover the suns exactly in a total eclipse.\n\nthe same thigs happen with other planets such as venus. when you see it infront of the sun its causeing and eclipse, its blocking some light from the sun, however its so small and so faraway that you cant notice it.\n\nand if you mean do all the planets align with each other the answer is yes. it dont happen very often and i cant tell you when ti happened last or when it will happen, but if you think of it like marbles in a row, and you have your head behind the furthiest you cant see the first or anyothers sept the one your behind. the palants do that.
875688
We don't have to explain it. Most stars are multiple, some are not. \nBy good fortune, we have a single star system which means we can have a solar system and stable orbits. The tidal forces would have been too strong from a multiple star system for planets to form. The single star system also allows for moons around the planets. Without our moon we probably would not have life on Earth in the first place, among other things.
1036564
it is true, most of the visible star systems in our galaxy are binary (not 98%, more like 80% but that's still a lot). however, our sun is very unique in that it is just a single star system. We know this because the eccentricity (how much of a deviation from a perfect circle, with e=0 being a circle and 0<e<1 being an ellipse) of the planets within the solar system (sans Pluto) and really really close to e=0.\n\nAs you head to the outer planets, we see that the eccentricities increase substantially (but are still small, like e=.09 or something). This is obviously due to large bodies afflicting their gravitational pull. It was this theory that led to the discovery of Uranus, Neptune, and Pluto.\n\nNow we come to Pluto. Pluto's orbit is strange because a lot of energy came into play to put it in that orbit. The likelihood is due to the fact that Pluto was one of Neptune's moons or a rogue mass body from the early formation of the solar system. \n\nThe decision was reached to that because we know from endless observations that there is nothing close by that can produce enough of a gravitational pull to cause Pluto's orbit to be that offset. Even if it were dead, we would've still noticed it by now (if it were present) due to strong gravitational pulls from a single source. But none have been found. \n\nThe only reason why this belief is even more cemented now is due to the discovery of extrasolar planets within binary star systems that have insane eccentricities. This does not cement the theory, but adds a significant amount of evidence that our solar system is an anomaly in the vastness of space.
364063
Chances are, yes.\n\n90% of all solar systems are not in a circle so they can not support life.  Of the 10% that are left what are the odds that another planet is moving around a sun where it's not to hot or too cold. Even in our own little solar system there is only one.\n\nSo, if there is life elsewhere, we will never meet them.
774798
This theory sounds like a bunch of balogna (pronounced baloney). The reason that there is day and night is that a giant dragon eats the sun at night. And in the morning, it lays a new sun.\nBut seriously, day and night occur because the earth spins on its east-west axis. On some other planet (Neptune, I think) the sun rises and sets on its north-south axis.
266687
A solar eclipse occurs when the Moon passes in front of the Sun and obscures it totally or partially. This configuration can only occur at New Moon, when the Sun and Moon are in conjunction, as seen from Earth. A total solar eclipse is considered by many to be the most spectacular natural phenomenon that one can observe.\n\nHow scientist know that there is going to be an eclipse? because they know the line of path the moon and earth is moving and its speed and stuffs.
32921
Um... what are you asking here?  I think an answer would be that the planets revolve around the sun because the sun it so massive that it makes a small 'dent' in space-time, and the planets 'fall' towards the depression.  There are 9 planets in the solar system, and Earth is the third from the sun and the largest of the inner rocky - planets.  Many of the planets have satellites, called moons.  Earth's moon is called Luna which is (relative to the size of its planet) particularly large.  The planets also rotate on their axises (which is why we have, among other things, night and day).  Nearly all planets also have an atmosphere, a layer of gas that exists above the planet's surface, though only Earth has an atmosphere suitable for breathing.   Beyond Pluto, the last official planet, is a very large void followed by a large collection of planetary fragements (meteors), then another large void.  The solar system ends at a boundry called the heliopause, the outtermost reaches of the sun's solar winds (think of it as a wind made of radiation).  If you travel through the heliopause, you would experience an arguably extreme 'termination shock' as you enter an even larger void into intersteller space.  Okay, that's all I got.
537957
The Earth is between the moon and the Sun.  \n\nSomeone standing on the moon would see a solar eclipse.  \n\nSolar eclipse  Sun   Moon   Earth\n\nLunar eclipse  Sun   Earth  Moon
370080
Finally a good question.\n\nThe Moon's apparent size being very similar to the Sun's apparent size is a coincidence. But the Moon doesn't always cover the Sun during an eclipse, look up annular eclipse (the looks smaller), and when it does cover it, it is usually a bit larger.\n\nBut now let's talk about the main question.\n\nWe always see the same side of the Moon because its during its full rotation around the Earth it also makes a full rotation around its axis. This is not a coincidence. There are several satellites in the solar system whose rotation is synchronized with their rotation around a planet (eg. Io around Jupiter, Charon around Pluto but also Pluto around Charon :-) etc. ).\n\nThe Earth's gravitation decreases with the distance from its center. So the Moon's opposite side (which is further away from the Earth) is attracted less by the Earth than the side which is closer. This results in the Moon being a little bit deformed along the Earth-Moon line.\nThe Moon is a little bit shaped like an egg: if it would rotate faster, it would not be elongated towards the Earth anymore, and the Earth's gravitation would try to turn it back. This is very difficult to explain without the opportunity to draw figures ... but anyway, search for tidal locking on the net, I hope you'll find a good, illustrated explanation.\n\n\nEDIT: In one answer someone said that Mercury is in a similar relation with the Sun ... this is not exactly true, as the ratio of period of its rotation and the period of its orbiting is 3/2.\n\nMercury also has an elongated shape: due to this 3:2 resonance, at its perihelion, the axis of its elongation is always parallel with the Sun--Mercury axis.\n\nEDIT2: As I said, the apparent size of the Moon is just a concidence. Other planents do get total eclipses. What does a total eclipse mean? It means that a moon casts a shadow on the planet: http://www.c-science.com/txt/images/1999/990428unssx2.jpg\n\nThere is a nice program calles Celestia, which can show you the eclipses caused by various moons on various planets (3D animations): http://www.shatters.net/celestia/
1130994
Yes, the planets go through phases. Celestial phases are basically light hitting different hemispheres at different times.
250474
The U.S. is out of luck for this solar eclipse. And by the way...solar eclipses happen during DAYTIME only. Lunar eclipses happen at night.
133273
Probably not. It seem unlikely a moon could escape its orbit around a planet and end up in another orbit that is so eccentric as Plutos is.\nOn the other hand some of the moons of neptune and uranus may very well have begun as Kuiper belt objects that ventured a little too close to them and got captured by their gravity.
427739
Earth's shadow, it is called a lunar eclipse. \n\nWhen the Earth crosses between the Moon and the Sun in exact alignment, a total lunar eclipse occurs.
499567
no it's not cos of the earth's shadow on the moon. its cos of the position of the sun and the angle at which the sun's rays hit the moon. the moon moves around the earth. if it moves further from the sun, less light will be reflected and you see a half-moon or quarter-moon.\n\nas u know, the light hte moon 'projects' is actually the reflection of light. the moon isnt a source of light. \n\nwhen the sun is directly behind the moon, and it shines on the 'back' of the moon, this causes an eclipse cos ppl on earth can only see a dark circle (the moon - as it does not reflect light in this case) and a whitish circle around the moon (the sun's rays)\n\nhope this helps!! :D
37400
Okay, first of all, the moon nor the sun are planets.  The first answer should sum it up.
1001354
I would assume that a eclipse of the sun, not a lunar eclipse affect the magnetic field of the earth a little bit, for a simple reason. The earths magnetic field is deformed by the solar wind, a constant stream of charged particles from the sun. Now if we have a solar eclipse it means that the moon is between the sun and the earth, and by that shielding some of the solar wind. But as the moon is much smaller then the earth this effect is probably not very large.
771507
Some says that Solar Eclipse affects on such but those are only rumors and superstition without scientific basis. All i can say is Solar eclipse is just a phenomenon that takes place when the moon blocks the sun...