Have you ever wished to travel through time to the future to see how the world would progress, or to travel through time to the past to change mistakes you have made previously, or simply to see ancient times! Have you ever heard of black holes? Or asked yourself before how they were formed? Or why scientists called them space monsters? And what happens to those who enter them or
even get close to them? Are there really theories and equations that say that time travel, or going to other universes through black holes may be possible! Are there types of time travel machines? What do they look like, and what are their features? And how did scientists originally deduce them?