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Time Travel and Wormholes - between science and speculation
Since Einstein's discoveries of space-time relativity and it's curvature (even invisible), black holes and wormholes offered possible solution for human deep space exploration. They have become part of astrophysical and mathematical research and theoretical speculation from scientific and non-scientific point of views alike. Stephen Hawking is probably the one of most known serious scientists of our time, who worked and still works on theorethical explanation of this phenomena. Exciting and different theories emerged, as is for example one mentioned here in Wikipedia - Hyam's Theory. Many not so scientific people (writers, journalists) took the part in such a discussions; some because of curiosity, some drawn by attractiveness and mystery surrounding this thematic, others to release their deep fantasies or sci-fi intentions. It fueled imagination of ordinary people to take a closer look at such a natural phenomena (if proved to exist), because it could bring us quickly to any point of space (and maybe even time?). All of this doesn't have to be surprise, given the vastness of Universe and our still weak cosmic technology who is unable to bring humans closer even to nearby planets, not to mention stars and galaxies - in search for oldest questions of all: "Are we alone?" and "What is the purpose of our existence?"