Just ran into this thread, I know it's a bit old but there are some misconceptions here about what the spaceship will experience in terms of particles coming towards the spaceship. The only relevant quantity is the acceleration of the ship, not it's velocity relative to the origin. Remember at...
CosmicVoyager. I have a thought experiment relating to your original question that I thought I'd share with you. You started wondering what it was that stopped the object, or spaceship or whatever it is accelerating as it approached the speed of light. The answer is nothing!
Here goes...
That last bit you quoted was specifically in reference to the original question. You don't need to remind me. I would explain that the sky appears to be blue because of refraction. I could point the questioner to the relevant sources if they need more detail.
If asked the original posters...
Dmitry67 and DaleSpam. Scientific method is a tool, a method in fact, that allows us to answer questions about the natural world.
If someone asked me why the sky is blue, I would be able to understand their question and give them an answer based on my knowledge of science. It's a shame you...
I know what you meant! Yes, it's all expanding, we think.
I don't want to be involved in a semantic debate. Surely you can't claim you don't know what I'm talking about? There's more to science than the scientific method! I'm talking about what drives us to discover things; what makes us...
"Why?" is the most important question! And in science leads to the next level of understanding and more questions, that normally begin with "Why...".
Like, "Why do the planets appear to move the way they do?" Kepler already had equations to describe the motion of the planets and still Newton...
I think I understand what CosmicVoyager is getting at. It is fascinating and illuminating to start gaining an understanding of the implications of relativity from basic principles, i.e. the experimentally verifiable facts that light is observed to have the same speed for every observer and also...