What is a wormhole?

WHAT IS SPACE-TIME ? 

According to albert einstein,
Space is 4 dimensional 3 dimensions are regular ones (length, breadth and height) and one extra dimension is time.
The combination of these 4 dimensions make what we called as space-time 

Properties of space-time 

Im gonna talk about only those properties which are necessary in order to undertsnad our topic wormhole

Property : when anything which has mass sits on space-time it bends the space 

Creation of a wormhole

The mysterious objects like black holes contain a singularity where matter is one dimensional and the density and the mass of singularity is infinite so the singularity should make a hole to 
space-time according to the theory. Then the hole acts as a portal which connects the distant place of the universe or it can even connect to another universe or dimension


(what ever I spoke about the things in this blog are from the theories which supports the prensence of worm holes)