Earthed

Planets >>>>>>>>? I was wondering can anyone tell me why/how all the planets, and moons we see in the solar system are round? I have always wanted to know why every one is a sphere????? I dont require a very, very technical answer, just the basics,,,,, Thanks

planets??? which planet is the biggest? which planet has the longest year? which planet is the hottest? which planet is the coldest? which planet has the shortest year? which planet is the smallest? how may planets that are descoverd that have water and air? and how may universas are there??

What causes the apparent retrograde motion of the planets? A. As Earth passes another planet, its gravitational pull slows down the other planet so that it appears to be traveling backward. B.When planets are farther from the Sun, they move slower than when they are nearer the Sun; it is during this slower period that they appear to move backwards. C.The other planets never really appear to move backward; the background stars shift due to Earth's revolution around the Sun. D.As Earth passes another planet, the other planet appears to move backward with respect to the background stars, but the planet's motion does not really change. E.Apparent retrograde motion is an illusion created by turbulence in Earth's atmosphere.

How many Earth like planets are there in the universe with existence of air water and life? Earth has been the only planet since millions of years with the proof of life.All other planets are merely assumptions by astrologers that earth-like planets exist beyond our Milky way. Recently an earth like planet was discovered by astrologers which was supposed to have life, fire,water and Oxygen like gas.But that is all a foolish assumption.

Why do planets that are closest to the sun orbit faster than the planets furthest away? I am helping my daughter with a science project and would like to know specifically why planets that are closest to the sun orbit faster than further planets? I am having difficulty finding a specific explaination. Serious answers only. Thank you!

What planets were visible during the 1967 total solar eclipse? In 1967, the Sun, the Moon, and five planets visible with the naked eye were all in conjunction with each other during a solar eclipse. This made the viewing of Mercury, Mars, Saturn, and what two other planets possible?

Would the terrestrial or jovian planets be least likely to hold on to atmospheric gases? A planets atmosphere consists of gases which are gravitationally bound to a planet. The nature of the atmosphere depends on the escape velocity of a planet. Would the terrestrial or the jovian planets be least likely to hold on to atmospheric gases? Explain. I think that the jovian planets would be able to hold onto the atmospheric gases because the escape velocity is greater then the terrestrial planets. Also, don't the jovian planets have denser atmospheres then the terrestrial ones?

How many dwarf planets are there in the solor system? When I search it all of them have different planets and they seem a bit dated. Can anyone tell me where all the dwarf planets are, i know theres one between mercury and jupiter, and there's pluto are there anymore?

How do the densities of the inner planets compare to those of the outer planets? Why do they differ? How do the densities of the inner planets compare to those of the outer planets? Why do they differ?

What does 6 retrograde planets in my birth chart mean? Jupiter, Pluto, and Saturn in my first house are retrograde. Uranus in 2nd, Neptune in 3rd, Mars in 12th are also all retrograde. All the retrograde planets in my chart fall in one hemisphere and the all forward moving planets are in the opposite. How do you interpret this?

Is it common to find planets orbiting around red dwarf stars to have habitable life? I am not talking about other yellow stars like the sun. Just red ones. I heard the planet can be tide locked. The dark side is so cold it condenses gases. The daylight side is so hot it boils water. Is it always true that planets orbiting red dwarfs are tide locked?

How come we have unstable planets in our solar system? I just don't get it, Earth is the only planet with life but other planets are not. These unstable planets are wasting there time here but Jupiter is keeping the rocks from falling into earth. We don't need those other gas planets. It seem to me Venus, Mercury should have life like earth but it don't. Is mars consider a planet or a moon.

How do most scientists believe that planets formed? How do most scientists believe that planets formed? A. They broke off from the sun and floated away. B. Moons from other planets melted together to form a new planet. C. They formed when dust and gases condensed at the center of a cloud in outer space. D. They didn't form; planets have always existed. E. They formed from volcanic eruptions on other planets.

What force prevents planets from crashing into one another? Why doesn't the orbit of planets degrade? Gravity is constant is it not?

Why are all planets in our solar system basically on the same plane? Can anyone explain why all the planets in our solar system seem to be basically on the same plane? If everything is random, this seems too co-incidental. Would the gravatational influence of the other planets have pulled all the planets into a similar plane?

How do planets move and what keeps them in place? I was just researching things about space and things but I would like to know a bit more about the planets movement. I know the planets move, but how?

How many planets are there and what are their names according until 2008? I'm confused because I hear that Pluto is no longer a planet and that some planets are discovered. Help!

What sentence should kids use to learn the planets? Since Pluto is not a planet anymore, we cant use the "My very excellent mother just sent us nine pizzas" sentence to learn the planets. What would be a good sentence to replace it?

How warm will the planets be when Sol is a red giant? How warm will the planets be when Sol is a red giant? Everybody knows the sun will swell up and engulf the closer planets (Earth!), but what about the more distant planets? Which ones will survive? Will they be warmer or colder when the sun is a red giant. If warmer, will anyone be about the right temperature for people?

Why do we have Terrestrial planets close to the sun and Jovian planets farther away? Explain why we have Terrestrial planets close to the Sun and Jovian planets farther away. Include in your explanation concepts such as condensation temperature and the Frost Line. OR Our Solar System consists of planets that orbit in the same direction on roughly the same plane (Pluto is no longer considered a planet). Explain how the conservation of angular momentum in the slowly rotating collapsing spherical solar nebula would result in these features.

What has determined the order of our planets? I understand that gravity keeps them in line, but what has determined how close they are to the sun? Is it the weight of the planets? Are the heaviest closest?

What planets do have lightning in our solar system? I know that our earth have lightning, and, I need to know do any planets have it.

What planets outside our solar system have been found so far? Gliese 581c is the most interesting finding lately, i guess. Similarly what are some other planets found? And how can they be compared to Gliese 581c?

How come all planets travel on along the Plane of the Ecliptic? Why do all of the planets travel across this celestial line? In the present model of the solar system, all of the planets travel around the sun at relatively the same angle. I don't really know how to phrase the question without some kind of diagram, but why is there not a significant angle?

How do I calculate my weight on different planets? For my science project I have to calculate how much I weigh on the different planets... Is there like a website I could go to or something that could help me do that? Any help at all please? Thanks!

What would happen if you threw a rock midway between two planets? If you threw a rock midway between two massive objects (e.g. planets), how would the rock move? Would the pull from one planet cancel out the pull from the other, allowing your rock to continue unmolested? The question of how two heavy objects could come to be near each other in the first place is an odd one. Maybe they are not quite at rest, and are orbiting each other or something else.

How did scientists work out the size of planets? I've been looking for an answer but all I can find is the dimensions of planets. Does anyone know how scientists figured out the size in the first place?

When a star becomes a shooting star, what happens to the planets revolving around it? My understanding is that potentially all stars have planets orbiting around them. When the gravitational pull of the star is gone, what happens to the planets?

Why do planets rotate about thier axes, and why do they revolove around the sun? Centripetal force, centrifugal force, all right, but how is such a delicate balance maintained in nature? Why don't planets collide with each other and stuff like that?

What do they mean when you can see planets during a total solar eclipse? There is a total eclipse coming up in August for parts of Russia and China, there are other places as well but I don't know where. I was reading an article about how there will be four planets visible during the eclipse. What I want to know is, does the eclipse magnify these planets so you can view them with the naked eye or does it just expose the area of the planet in darkness long enough that you could view them through a telescope?

How far into instellar space would our sun be detected to have planets orbiting it? Extrasolar planets are detected on other stars using the wobbling and dimness effects. Theoretically, would a civilization as advanced as ours detect our solar system from stars as far as we have detected to have planets or in that neighbourhood.

How many planets are in different galaxies? I want to know how many planets there are in different galaxies. I like learning.

How do meteorites originate from planets? Scientists have found a number of meteorites that they claim have originated from other planets such as Mars. One even had what appeared to be microscopic fossilized bacteria. How do meteorites get off planets, and how would fossilized bacteria survive the process? It just seems strange to me that scientists could assume tiny microscopic fossils could withstand the initial impact, as well as the descent through the Earth's atmosphere, doesnt it?

What is the smallest a star could be and still support livable planets/planetoids? Also, what size star is needed to spport three livable planets? To explain, I am trying to model a binary star system where one star is larger and supports three livable planets (consecutively) and a smaller star can support livable orbiting bodies. I'm trying to figure out the conditions of a system that would allow for that.

Why do all planets in our solar system go around the sun in the same way? Looking at a model of our solar system, and I'm using the term 'horizontal' just so it's easier for me to comprehend, but pretty much everything goes around the sun horizontally. Someone told me this is because that's the way the sun is turning and all planets have to follow that. Is this true? And using this same model as a visual image and the three dimensions of space, could it ever be possible for a planet to orbit vertically or even the opposite direction of the other planets in a system? Thoughts?

What is the primary problems in my horoscope and which planets are working against me? ? My DOB is 17.01.1978 and time is 09.21am at madurai,south India,Tamilnadu.What ever i think i am not able to execute it and my primary issues are fear,laziness and no consistency due to lack of energy.Primarily which planets are causing this all and how it can be stregthened? Now i am facing problem with my marraige. I am planning for Legal separaion and when i will come out of this issue and what time i can plan for my next marraige?

Do the stars and planets actually have the ability to alter human emotions, destinies, and events? In other words, can Astrology and horoscopes be proven to be valid and correct? Because I read somewhere that it could be, and that they planets and stars and their positions in the sky, have an effect on humans on Earth.

How far into the future can we reliably predict the motion of the planets? I have heard that, according to chaos theory, we cannot rule out the possibility that planets could be ejected from the solar system. Even without chaos theory, the math required to predict a system this complex, for any significant length of time, is quite complex. Within two standard deviations of a planet's projected position, how far in the future can we predict it's future position? Is there any way to measure the prediction's degree of certainty? OK - the question isn't "can we predict" the motion, but "how far". Suitable answers would include: 1) I don't know, but the answer might be roughly calculated with this technique 2) 500 years (to pick an arbitrary number) and here's my equations 3) I don't know, but it reminds me of a solution applied to this different problem...

What are some names for songs that the titles involve planets? Ok i need some titles of songs (you can make some up if you want) that involve planets, more specifically Mars.

Which of the following is true for both gas planets and terrestrial planets? Which of the following is true for both gas planets and terrestrial planets? They have moons orbiting them. They are a round shape. They have rings. They rotate in the same direction.

How do scientist calculate the age of the stars and planets? Some articles listed the estimated age of the sun and planets surrounding it. I am just wondering, what technology do they use to do that calculations? Is it Gamma rays or I don't know, some other technology?

What planets are most visible at this time of the year? I'm taking an Astronomy class right now and next week were going to look at some stars and planets at night and I was wondering what planets are most visable right now? If it matters, I live in Michigan.

How many planets are now in the solar system and what are thier names? Yeah yeah, we've all heard scince 3rd grade that the 9 planets in our solar system are mercury, venus, earth, mars, jupiter, saturn, neptune, uranus, and pluto. But now they've removed pluto, and added planets in between mars and jupiter, and after uranus, and I'm very confused. I do know that there COULD be as many as 53 planets, but only 12 or so have been identifyed and named. How many are there exactly and what are thier names?

Why does the Earth and other terestrial planets have a relatively low mass but a relatively high density? Why does the Earth and other terestrial planets have a relatively low mass but a relatively high density? Is it because gravity is pulling the matter closer together making it denser. Or terestrial planets are more dense because they are made out of denser material?

What keeps the planets and sun in place? What keeps the planets and sun in place? In other words, why are they not floating around and bumping into each other?

What is the ratio F1:F2 of the gravitational forces exerted on the star by the two planets? Consider two planets of mass m and 2m, orbiting the same star in circular orbits. THe more massive planet is 8.6 times as far from the star as the less massive one. What is the ratio F1:F2 of the gravitational forces exerted on the star by the two planets? What is the radio v1:v2 of the speeds of the two planets? What is the radio T1:T2 of the orbital periods of the two planets?

What are the basic characteristics of the planets? Of the nine planets what are the basic characteristics of each? Or what website can give me the characteristics of each planet.

How many planets has man discovered so far? In school,they told us there were 9 planets. Now,Pluto is no longer a planet and more planets were just discovered. How many are there?

Is the temperature of the planets in our solar system rising? We all know that data shows that the earth's temperature is currently rising, but is there any detailed and trusted data on what has been happening to the temperature of the other planets in our solar system, and the associated moons, etc?

How many planets we will have in September? Leading astronomers of the world are now trying to work out a more precise definition of a planet. By the end of August of this year (2006) they will have to either declare that one of our Solar System’s planets is not a planet or that there are about 20 planets in the Solar System. One thing is for sure: it will not be 9 planets anymore. What do you think their decision will be? More than 9 planets or less?

What are the mass and composition of the planets? I'm doing a Science project thing, and I need to know what the mass and what the composition (what it's made of), for the planets: Earth, Murcury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and the dwarf planet, pluto. If anyone could give me a link to a website or something, that'd be great. I don't think I could trust someone's info if they just told me and didn't give a resource. Thanks a ton in advance!

What is the total mass of all the planets combined be able to match the milky way? The planets are all fairly big, right?so,if all the planets combined,including the closest star to us combined,would it be even able to match a small fration of the milky way?

What will happen to the planets after the Sun turns into a white dwarf? I've read that after the Sun's fuel burns out, it will turn from a red giant into a white dwarf. I know that by that time, Venus, Mercury and maybe even Earth would have became part of the solar matter, but I was wondering what happened to the other planets. Were they dragged into the Sun when it collapsed under it's own gravitational pull?