Why Do Some Quasars Have Redshifts Greater Than 1

question 15

Multiple Choice

Why do some quasars have redshifts greater than 1?

• A)They are made of different elements than any other objects in the universe.
• B)They are very distant, with relativistic redshifts that take into account dilation of space-time,as Einstein predicted.
• C)They are made of tachyons and thus are able to move away from us faster than the speed oflight.
• D)Einstein proved it is impossible to have a redshift greater than 1; these are all due togravitational lensing tricking us.
• E)They are moving towards us, which throws off our spectrometers.

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