299792458

The speed of light is 299,792,458 metres per second
No material object can move faster than light

“Nothing in physics prevents you from travelling as close to the speed of light as you like
99.9 percent of the speed of light would be just fine
But no matter how hard you try you can never gain that last decimal point”
Carl Sagan

Light travels almost 9.5 trillion kilometres in the course of a single year
The nearest star to the sun is about 4.5 light years away
With today’s technology it would take us almost 20,000 years to get there

It’s a long way to go but I hope one day we will get there
As long as we don’t wipe ourselves out first

Energy equals mass times the speed of light squared
Energy equals mass times the speed of light squared
Energy equals mass times the speed of light squared
Energy equals mass times the speed of light squared

“Nothing in physics prevents you from travelling as close to the speed of light as you like
99.9 percent of the speed of light would be just fine
But no matter how hard you try you can never gain that last decimal point”
Carl Sagan

© Alex Matheson 2010 (except for the quoted bits, obviouslyl)

Notes

This one is pretty much about the speed of light and our efforts to travel into space. I had help from such luminaries as Carl Sagan and some bloke called Einstein with this one. Not forgetting Bill Hicks for providing a way in which our dreams of exploring the galaxy could be realised.

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