i think this was said by Lurch, a pf member.What we measure as the distance to Poxima Centari would be about 24,000,000,000,000 miles, and a photon would take just over 4 years to get there. But to the photon, the distance was zero, and the trip took no time at all.
well, this is what i got after i looked up 'time' in wikipedia:In physics, the Planck time (tP), is the unit of time in the system of natural units known as Planck units. It is the time it would take a photon travelling at the speed of light to cross a distance equal to the Planck length. The unit is named for Max Planck.
so, according to this, the photon does take time to travel.It is the time it would take a photon travelling at the speed of light to cross a distance equal to the Planck length.
time is everything, isn't it? we have used units for our convinient because time is the indefinite continued progress of existence and events in the past, present, and future, regarded as a whole.. u say that photon takes no time to reach it's destination. but everyrthing is happening in time, don't u think? it's just that it travels so fast that it does not reach out calculations. our units. if a photon has to travel from a star to Earth, then it should travel in time. because time is always happening no matter how fast anything travels in it.
this is what i think. please tell me what u think, so that i can correct myself if i'm wrong.