stevowitz
The Dude
Read it for yourself :]
This part makes me happy:
This part makes me happy:
The existence of dark matter and dark energy is based on the assumption that Einstein's gravity is affecting galaxies billions of light-years from Earth in the same way that it affects objects in our solar system.
Based on general relativity, for example, scientists think dark matter exists because some cosmic objects behave as if they have more mass than we can see.
But until now, tests of general relativity on galactic scales have been inconclusive.