Speed Of Light

 The speed of light, usually denoted by c, is a physical constant important in many areas of physics.It Is Maximum Speed At Which Energy ,Matter Can Travel .Its the Fundamental Constant In Physics.
As We All Know That Light travels At a Speed Of 3*10⁸ meters Per second .Which Would Be Precisely Around 299,792.46 In a Second Or 1,079252956 Km Per Hour .
So Far We Didn't Even Made Any Significant Close To The Speed Of Light.Nothing can go faster than the speed of light. As for matter, it can never reach the speed of light,To Reach The Speed Of Light a Space Craft Should Have Infinite Supply Of Energy Or Zero Mass .

Einstein theory of relativity address that question quite well. Mass will increase exponentially so that the velocity will reduce, until mass becomes an infinite value when the velocity reach light speed.
Both Are Impossible In reality.Photos And Electrons which Have Infinitely Small Mass Move At Fraction Of Light Speed.And even if the physicists tell you it can't be done.

Space Travel Always Been a Dream Of Astronomers How Ever It would Take A Life Long to Travel To Pluto And Even More With Present Fastest moving Space Crafts.Travelling at light Speed Or Even Close To Or At least the Fraction of Light Speed is Fictitious Thing.
Hope That a Day May Come In Future Time Travel is Possible Just like In Star Trek.
As Einstein famously told people that it was impossible to split the atom and that you would always need to put more energy in than you would get out of it. Well now look where we are in the nuclear age! Nothing is impossible In This World If We Give A Try !!