Since there has been an increasing interest in both the public and private sectors regarding space exploration, scientists are doubling their efforts to study various aspects to make it more secure and convenient for astronauts and hopefully, average people to go to space.
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One of the factors we have been looking at since Einstein came out with his theory of general and special relativity is whether we can travel at the speed of light in order to make it easier for intergalactic space missions and exploration without having to spend long years going to and from outer space.
There are three ways in which we can possibly travel at the speed of light: electromagnetic fields, magnetic explosions, and wave-particle interactions.
-via The Daily Grail
(Image credit: NASA)