what will happen if all planets start rotating in opposite direction?
540447
Let's just talk about Earth. The earth's diameter is 12756 km. Its circumference is pi x 12756 = 40074 km. The earth spins 1 round in 24 hours. That's 1700 km/h, or 472 m/s. If it rotates in an OPPOSITE direction, it's like the Earth is rotating at 944 km/s and suddenly stops. What happens? You fly through the air at 944 km/s. All the houses fly through the air at 944 km/s. Whole forests fly at 944 km/s. Even whole mountain ranges and mountain tips fly at 944 km/s. The ocean's waters fly backward at 944 km/s. Talk about a uber tsunami. I don't know what the friction of air against these object would do to them. Can anyone solve that? Even the Earth's crust might become detached with its outer mantle, I think. Lava breaks out everywhere, global earthquakes... In short: All hell breaks loose. Man, that's even worse than the Death Star. Superman actually does that to Earth in one of his movies. He's a major nut!
701846
In a word - yes\n\nAll the planets affect each other, although not always in major ways. The solar system can be considered as a two body system (the sun and Jupiter) with perturbations (all the other planets).\n\nFor an example of this, look at the precession of the perehelion of Mercury. General Relativity accounts for a tiny amount of that, but the rest is from the effects of the other bodies in the solar system.
217587
First I want to clear up that clockwise is really a 2-dimensional description of rotation, and planet rotation can be viewed in 3D so you can't really describe planet rotation as clockwise or counterclockwise. If you define an "up" and a "down" for the solar system, and then say "when viewed from above the solar system rotates counterclockwise", then the "anticlockwise" description works. For my answer we will assume you have done all this and that the solar system rotates counterclockwise, so there is no confusion from the wording of the question.\n\nThe reason the solar system rotates counterclockwise has to do with the way the gas clouds that created the solar system collided. They didn't collide head on. Think of cars travelling in opposite direction down an interstate hitting each other not quite head on (i.e. the left headlights of both cars smack together). When they do this they will spin out sideways - they will effectively rotate around each other (in North America with the cars driving on the right side of the road, they will rotate counterclockwise when viewed from above if they collide like this). The gas clouds did the same thing and their collision exceeded the critical density needed for gravity to take over and start forming the solar system, and as this matter collapsed to form the sun and planets, the rotation sped up. The rotation these gas clouds got from their collision gave momentum to the rotation of most matter in the solar system; the sun rotates in the same direction as those clouds did when they collided and so does most other things, including all the planets.\n\nSo that is why.
356220
Depends on your point of view. If you're hovering above the North pole, the earth rotates counter-clockwise. If you're hovering above the South pole, it rotates clockwise.
517874
Night and day occur at the same time on opposite sides of a planet.
1021502
The shape and direction of the twist is given by Coriolis effect, which  says since everything is falling to the center of earth, and it is spinning, there developes a curve, just like the one you see on your toilet, as opposite of the one you'd see in other toilet in southern hemisphere (if you are in the northern one)
176155
They are in space.. so it depends from what angle or where are you looking as a whole picture. Since we are on earth, we take earth's orbit as the reference and draw the other planet's rotation. But from outside in space (outside earth), if you are positioned perpendicular to earth's rotation, then earth is rotating in vertical direction.. thats what i could imagine..
998766
it depends. Will you be facing north or south on the planet's surface? Then figure out if your left hand is up, and the right is down, or vice versa. If it is, you can count on a retrograde rotation.
538810
The effect known as the Gyrous of Rotation causes planets to spin. When the planet is born and begins to condense out of its accretion disc it contracts and this puts a turning moment about the planets common centre, similar to a ballet dancer pulling in their arms in order to spin faster. JULES
160263
Well at some point, it might go to zero I suspect because it has to cross zero. That is what it does in the sun's case during a reversal, anway. \n\nHowever, we do not know exactly what a reversal will look like and how long it will take, since the last one was several hundred thousand years ago, and the data is just poor.\n\nWill the poles wander first?\n\nThe dipole field turn quadrupolar or more complicated?\n\nWill the field get stronger briefly?\n\nWill it become unstable before flipping?\n\nWill it ever flip again?\n\nWe just do not know.
970270
it won't be for a long time from now, like 1000s of years, but it will happen.  Planets are basically stars and stars burn out sooner or later.  If it isn't earth that ends first, it'll be the sun that burns out and we can't survive without the sun.
180154
because of the differing sizes of each planet the time it takes each planet to rotate differs. we also have to factor in the speed at which each planet is rotating.
802714
The solar wind comes from the sun in all directions - therefore it would hit any planet in the orbital plane at a right angle. This would be the case if all planets revolved with a perfect 0 dgree axial tilt\n\nBut you have to consider the angle of the planets tilt - Earths is 23.5 degrees, and Uranus is a whopping 80 odd degrees. It also depends on where the planet is along its orbit - ie during british summer time we are tilted by our postion in orbit toward the sun,  - that is the North Pole is  angled more toward the sun. During winter - when we have traveled to the 'other side' of the sun the oposite is true - the pole is angled away from the sun.
167554
It is highly unlikly that the earth will ever change the direction of rotation. A strong outside force must be present. But the rotation of the earth is slowing down over time due to the pull from the moon. dont worry if anything does change you will not be here to see it.
52855
It has to do with the direction the earth rotates on its axis. It rotates once every 24 hours. So, the direction it spins is the direction the sun passes by. The earth would have to completely stop and start to rotate in the opposite direction in order for the sun to rise in the west and set in the east. Hopefully that won't happen any time soon, because it would probably mess gravity all up.
260515
Apparently, lesser sunlight will get in. That will cause some imbalance on earth.
994578
Technically, it is ... just slowly ... the orbits that the planets make around the sun are actually the planets spiralling inward toward the sun ... they will collide with the sun eventually.