Warning: You're about to enter a region of intense gravitational pull.
Black Hole Theory is the study of those regions of space where gravity is so strong, it warps space and time around it.
It's like the cosmic equivalent of a cosmic sinkhole, where matter gets swallowed up and never comes back.
But don't worry, it's not as scary as it sounds! Well, unless you're a star, then it's very scary.
Want to know more about the science behind black holes? Check out:
Black Hole Science for the nerdy details.
Or, if you're feeling adventurous:
Black Hole Adventures for tales from the edge of the universe.