You create a vacuum in a lab, and then shine a light through it, and there is experimental proof that light travels through a vacuum. Alternatively, take the fact that light travels through space - if light could not travel through a vacuum, no light from the stars, the moon or the sun would ever reach our planet.
It takes one second for every 299,792 km (186,282 miles) it has to cover.
It doesn't. Nothing to travel through.
The question is irrelevant, since sounds cannot be transmitted through space.
Wormholes are theoretical. It is unlikely we will ever be able to travel through one if they are proven to exist.
With present technology it only takes a few minute to reach 'space'. To travel elsewhere would depend on your destination.
Because electromagnetic radiation at all wavelengths travels through vacuum at the same speed.
102,900,000
10000 light years
this question makes no sense. Do u mean a 'lighyear'?
8.31 minutes @ the speed of light.
Sound waves can't travel through space.