Revolving
The Earth orbits the Sun.
The Earth orbits the Sun.
Orbital Bodies.
The name of the path the earth takes around the sun is known as the orbit. The earth takes slightly over 365 to complete its revolution round the sun.
It is impossible to name the first person interested in the moon.. Mankind has been watching the movement of the moon since pre-historic times.
Orbital x ray
The Earth's Rotation if you are talking about its revolution around its primary axis,or the Earth's orbit around the sun.
Another name for a space station is an orbital station or an orbital outpost.
parallax
The question is badly formed.When the Earth is at "perihelion", closest to the Sun in its elliptical orbit, it is moving fastest.When the Earth is at aphelion, farthest from the Sun, it it moving at its slowest.
One complete orbital revolution of the earth around the sun is called a "year", because that is the name that English-speaking human beings have given to that period of time. Other humans call it año, jahr, shana, anno, taon, etc., but whatever we call it, it is what it is because we the people have said so.
The name given to a particular space around the nucleus in which an electron moves is Orbital