Sal ... from these little lines Scientist can tell exactly what each star, galaxy or cluster or nebulae is made of.
The reason is that the elements the object is made of, absorb the light that is theirs and let the rest emit.
Therefore the dark barcodes (the missing light) tell us exactly what the object is made of.
A truly 'something for nothing' at faster than light speed. The speed of DARK
cool bananas ... greg
