Supraluminal
I just think that the word “supraluminal” — which means “faster than light” — is cool. Isn’t it? It’s actually a really pretty word. Something you’d name your daughter, right?
The speed of light is 186,000 miles per second, more or less. Nothing in our universe can travel faster than that, not if they want to remain, you know, real. It’s not just a matter of not knowing how to do it (we once didn’t know how to travel faster than sound, and thought it was impossible); it’s a matter of the entire infrastructure of modern physics breaking down utterly if it were possible for something to travel faster than the speed of light. When you hit that speed, time stops, your mass increases to infinity, and you effectively become a point in space, as I understand it. Photons, having no mass, can travel at the speed of light without becoming black holes, but nothing else can.
In a way, it’s depressing for those of us who like science fiction and the possibilities of intergalactic stories. The distance to the nearest star, Proxima Centauri, is so great that it takes light four years to reach us from there; we say it’s four light years away. Any engine that we human beings come up with for space ships is not likely to even reach a respectable percentage of the speed of light, so a journey of one of our space ships to Proxima Centauri is likely to take hundreds, if not thousands, of years.
But this past week, two German scientists came up with a paper theorizing a way to send ships to distances in space in much less time. The Moon could only be a couple of hours away, Mars a three-day ride, and Alpha Centauri no more than eighty days. This means faster than light travel. Which is impossible. According to Phil Plait over at Bad Astronomy, the paper relies on the existence of several new particles that we haven’t yet observed, on parallel space (something else we’ve never observed), and incredibly complicated mathematics which I doubt I’ll ever even come close to understanding.
But it really sounds like bunk to me. Cool as interstellar supraluminal travel would be, I think that these two German scientists are either working with bad data or are trying to fool everyone. I don’t know the science involved at all, but it just sounds too good to be true. And some reports suggest that a working prototype of an engine based on these principles could be around in just five years, which is also too wonderful to believe.
On the other hand, maybe they are on to something. Once upon a time, Cold Fusion was considered impossible; now, two decades after a pair of scientists falsely announced that they had come across it, others are beginning to wonder if it might be possible after all. So maybe this German supraluminal drive just might be possible.
But I doubt it.