Abstract:
We review a new concept of wormholes. We classify the wormholes into three categories: static, space-like, and time-like, and discuss the properties of each category. The relation between wormholes and black holes is examined. The astrophysical properties of wormholes are investigated.
Keywords:wormholes, Einstein's general theory of relativity, Multiverse.
PACS:98.80.-k
Received:April 11, 2017 Revised:September 11, 2017 Accepted: September 21, 2017