Our Earth is not in a falling orbit.
The Earth's rotational axial tilt causes the seasons.
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the northern hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
The Earth has 4 seasons because of its axial tilt of 23 and a half degrees to the plane of the ecliptic, which causes the northern and southern hemispheres to alternately point partially toward and away from the sun.
When something is orbiting the Earth, it is actually falling toward the Earth. But because a space shuttle has such a great velocity (speed w/ direction) it misses hitting the Earth's surface. Image you throw a baseball. The baseball follows the path of a curve called a parabola, but the parabola is actually part of an eclipse (elongated circle). Now image if you threw the baseball so hard that when it fell toward the Earth, it actually missed the "edge" of the Earth following the path of the eclipse around the Earth. That baseball would then be launched into orbit. (Of course you would have to throw this baseball at a speed of 11 km/s).
the rotation of the earth around the sun
There is none. Let's say you and the earth were the only 2 objects in our Universe. The two of you would immediately start falling toward EACH OTHER. Of course, with earth being a gigantatillion times bigger than you, all you would notice (if you had delicate instruments to measure your movement) is you falling toward earth. So there is no definite distance from earth before you start falling toward it. In reality, there are trillions of stars and gazillions of tons of space dust - you would fall toward them instead of toward earth, but there would STILL be a tiny tiny amount of falling toward earth.
Yes it is
at terminal velocity
actually the space shuttle, the astronauts, etc. are NOT weightless and experiencing zero gravity. They are slowly, the key word being slowly, falling back toward the Earth. The Earth has an enormous gravitational force. the shuttle doesn't fly near far enough away from the Earth to escape it.
The force that pulls an object toward earth also pulls the earth toward the object. The two forces are equal. Together, we refer to them as the forces of gravity.
at terminal velocity
falling houses earth cracks.
Because of force
Earth pulls on the object, and the object pulls on Earth
Earth's gravity
Gravity is unopposed while an object is falling.
No.