In the case of black holes, lights are pulled into by great gravitational force exerted by the dying stars (which forms into a black hole). If light has no mass, how is light affected by gravity?
In: 784
Imagine you have a white piece of paper, a marker and a ruler.
Use your pen to draw a line up against the ruler, when the pen gets half way up the page start moving the page in a direction while keeping the ruler in the same place. Continue drawing up the rest of the ruler length.
From your view you followed the ruler line perfectly straight, but when you check the line on the page it bends half way up and isn’t straight.
Gravity bends space (the page) so if a light passes, it follows the bend in the page.
Latest Answers