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Asked by Constancexbo to Connor, Jillian, Lidunka, Sarah, Steven on 16 Jun 2015.
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Steven Thomson answered on 16 Jun 2015:
The answer is, we’re not sure! Almost definitely not, but there are a few advanced theories that propose the existence of particles like tachyons which may travel faster than light, though they’ve never been found and probably don’t exist. (If they do exist, they can also travel back in time, weirdly…)
We do know that some subatomic particles seem to communicate with each other faster than light in a phenomenon called ‘quantum entanglement’, but we’ve no idea why this happens, and so far it looks like it’s impossible for us to harness this effect and use it for anything.
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Jillian Scudder answered on 17 Jun 2015:
Not as far as we know! All the particles we know about right now (in that we have detected them) are restricted to travelling below the speed of light. There are some theoretical (not yet observed) particles which could travel faster than the speed of light, but as far as I can recall, they can’t go any slower than the speed of light!
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