The questions are piling up, so it’s time to get through them. We’ve got a great collection this week. How can our eyes collect so many photons? What’s the speed of gravity? Shouldn’t the light from the cosmic microwave background radiation have passed us by?
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Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay. He's the forum co-administrator of the Bad Astronomy/Universe Today forum with Bad Astronomer Phil Plait.
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