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Aliens: Yes Or No?
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<blockquote data-quote="Stalker0" data-source="post: 9081060" data-attributes="member: 5889"><p>This isn't quite right.</p><p></p><p>Mass-less particles always travel at the speed of light, and light itself (the photon) is mass-less. Now photons do have momentum and mass equivalence through the energy it carries, but it does not have an actual mass.</p><p></p><p>As soon as something has mass, its speed must be lower than light speed, that is what all current theories of physics require.</p><p></p><p>The only thing we currently know of that can travel faster than light is space itself, for based on current theories space expands apart much faster than light speed currently in the universe. That theory has actually just recently been brought under scrutiny through the james webb space telescope though, as some preliminary results suggest we are not expanding faster and faster as was once believed but may be relatively static. This is however very early results, and it will take a lot more investigation to see if it holds up.</p></blockquote><p></p>
[QUOTE="Stalker0, post: 9081060, member: 5889"] This isn't quite right. Mass-less particles always travel at the speed of light, and light itself (the photon) is mass-less. Now photons do have momentum and mass equivalence through the energy it carries, but it does not have an actual mass. As soon as something has mass, its speed must be lower than light speed, that is what all current theories of physics require. The only thing we currently know of that can travel faster than light is space itself, for based on current theories space expands apart much faster than light speed currently in the universe. That theory has actually just recently been brought under scrutiny through the james webb space telescope though, as some preliminary results suggest we are not expanding faster and faster as was once believed but may be relatively static. This is however very early results, and it will take a lot more investigation to see if it holds up. [/QUOTE]
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