let's say there's a spaceship can accelerate to almost speed of light (0.9999c), and while it keep its speed constant, someone sending a beam of light once it pass through a specific place (which both light and the spaceship goes through almost same speed, at the same starting point, and parallel to each other).
What is the speed of light observed from the person inside the spaceship?
Is it almost stationary since both are almost equidistant as it goes further?
Two spaceships approach each other, Spaceship A has a speed of 0.8c, spaceship B has a speed of 0.6c. A passenger on spaceship A aims a laser at spaceship B, how fast does the laser light appear to be moving as observed by a passenger on spaceship B?
on all situation above, does the speed of light observed are $c$?
EDIT: Sorry that I didn't mention, I know there's special relativity but I don't understand the concept and why light observed is always speed of light
If speed is never changed, what property of the light that has changed as you travel almost the speed of light?