Because of the movement of the stars and other observable stellar object's.
a galaxy?
The Sun, or the Solar System, rotates AROUND the galaxy. After 230 million years (or whatever time it takes - you should understand that's an estimate), it will return, more or less, to the position it is now.
We know the Sun rotates because we can watch sunspots on the face of the Sun.
Dark matter shows itself by its gravitational attraction. This type of evidence comes in many different forms, for example, our galaxy rotates way to fast for the amount of known matter, therefore, there must be some unknown matter.Dark matter shows itself by its gravitational attraction. This type of evidence comes in many different forms, for example, our galaxy rotates way to fast for the amount of known matter, therefore, there must be some unknown matter.Dark matter shows itself by its gravitational attraction. This type of evidence comes in many different forms, for example, our galaxy rotates way to fast for the amount of known matter, therefore, there must be some unknown matter.Dark matter shows itself by its gravitational attraction. This type of evidence comes in many different forms, for example, our galaxy rotates way to fast for the amount of known matter, therefore, there must be some unknown matter.
An electron.
Yes, in fact everything in the universe rotates.
It does. It rotates about its axis and revolves around the galaxy.
a galaxy?
Yes it really does! It rotates around the Milky Way Galaxy.
The Earth rotates around it's axis.The Earth revolves around the Sun.
The Sun rotates around its axis. It revolves around the center of the galaxy.
Aside from occupying space, our galaxy also rotates. It takes about 220 million years for it to spin once.
The Sun partakes in the general rotation of the galaxy (the Milky Way Galaxy rotates once about every 225 million years). This corresponds to an average velocity of about 220 km/s.
What about it? General info: The milkyway galaxy is a spiral galaxy that rotates around a center of mass believed to be a black hole. On December 21st 2012 it is predicted that the earth will be in line with this center of mass
The Sun, or the Solar System, rotates AROUND the galaxy. After 230 million years (or whatever time it takes - you should understand that's an estimate), it will return, more or less, to the position it is now.
no in the galaxy no .....but it the universe no body know
We know the Sun rotates because we can watch sunspots on the face of the Sun.