If only energy can travel at the speed of light (see comments).

Subject: If only energy can travel at the speed of light (see comments).

Date: Fri Mar 28 09:42:27 1997
Posted by: Steve Rybicki
Grade level: grad
School/Organization: CMU
City: Warren State/Province: Mi
Country: US
Area of science: Physics
Message ID: 859563747.Ph

Message:

If only energy can travel at the speed of light (see comments). 
Why do light rays bend when they pass the earth's gravitational field
which would indicate photons have mass?

Re:If only energy can travel at the speed of light (see comments).

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