Nothing at all.
There is no such thing as a "space tornado". Tornadoes are whirling AIR masses, and there's no air in space.
But if you are referering to a wormhole or a black hole then the Earth would probably get sent through the wormhole to the phonomenom's destination.
If the earth was not tilted at an angle of 23.5 degrees, there would not be the different seasons.
Since "Planet X" is entirely imaginary, probably nothing at all.
In space during missions and at their training centers while on earth
It's impossible to say exactly what would happen. Many scientists have predicted what may happen, but it's not set in stone. Don't forget that the Earth's would take hundreds, if not thousands, of years to completely change its tilt like this. The obvious change would be that seasons would be changed dramatically, as the Earth would heat more unevenly. Many areas would experience the same extended periods of day or night that are now experienced only near Earth's poles.
A+ true.
It would really suck... for the people on the space station and the people on earth
where space is so cold the earth would freeze
The earth would turn brown and explode, polluting the space-time continuum. Also, space may turn green instead of black space.
it can stop the tornado
This would not happen even for million of years. The immense gravitional pull of earth would not leave any one to fall. Even the escape velocity of earth is 11.2 Km/s and this would probably happen. But even if you manage to fall, nothing will happen because you would be floating in lifeless space. and get churned down by radiation in outer space.
You would probally die
it is generally impossible to out run a tornado but if you do hooray for you
It will be a waterspourt
The Earth would spin of into space. To see a show where the Moon did that-search Space 1999.
It would disintegrate and the pieces would fly off into space.
A tornado would occur in the troposphere, the layer closest to the Earth.
This happens fairly often. Such a tornado would be recorded if someone observed it, but there would be no damage. Such a tornado would be rated EF0.