Nothing travels faster, establishing light as the ultimate speed limit. This distance equals one light year. Because light travels so very fast, everything appears to happen instantly in our everyday experience. If we are watching the Baltimore Ravens kick a field goal, we assume that the ball is kicked right at the moment that we see it. In actuality we see the light that is being reflected from the ball, and it does take time for the light to travel from the ball to our eyes.
Stars are millions and millions of kilometers away.
To see a star, that star's light must travel across space to our eyes. If the star is 5 light years away, then the light we are seeing from that star took five years to travel to our eyes. It also means that what we see happening at that star is actually what happened five years ago, not what is happening at the star right now. Imagine a planet with intelligent beings on it that is 20 light years away from Earth. These beings have an extremely powerful telescope and can actually make out details of what is happening on Earth.