Just a simpe question that is confusing

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Avatar of JobChess_The13th
If anything goes at the speed of light, it will have infinite mass. (Unless it weighs nothing). But light does have mass, as you can see when it is pulled twords earth when it is moving. If it doesnt have mass, then it will go straight forward, not affected by gravity. If light has mass, and it is going at the speed of light, wont it have infinte momuntem/mass?
Avatar of BasixWhiteBoy
It’s definitely not simple…

Light does not have mass, so it can travel at the speed of light without gaining infinite mass. Gravity still bends light because, according to basix relativity, gravity curves spacetime itself, and light follows that curved path. Light can still have energy and momentum without having mass, which is why it can be affected by gravity.
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