To: sit-rep
"how the heel can they tell GALAXIES depicted in different colors are moving at different speeds!!!???"
That's actually very easily done through use of the Doppler effect. It's used in radar systems all the time. It's the same as when you hear the pitch of a train's whistle changing as it moves past you. Sound is first compressed and then stretched. When the same method is used with light from any object, it is either red or blue shifted, depending on the direction it is moving.
To: Telepathic Intruder
you dont understand... if “Galaxies” that are millions of light years across like ours is. showing up THAT small and blurry, any movemnet of 1 fraction of the size of the galaxy would equate to 50,000 to 100,000 years!!! these friggin people make it sound like clouds on your doppler example. that they see em move in real time!!
23 posted on
10/24/2022 3:56:26 PM PDT by
sit-rep
( )
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