What would happen if your spacecraft fell into a black hole? Where are the wormholes and where do the boundaries of the Universe end? How does the color of the night relate to the Big Bang? How is it possible for certain stubborn yet fascinating cosmic particles to travel through time – indeed, to cross our atmosphere – defying death? Would you wish to find yourself out there where the past, present, and future coexist?

Albert Einstein radically changed our perception of the Universe with two remarkable ideas. The first: nothing moves faster than light – the ultimate speed limit. Space and time are eternally intertwined, creating the fabric of spacetime. The second: spacetime (like a trampoline) is warped by the weight of objects traveling in the Universe and experiences unfathomable indentations creating black holes.

However, this behavior of spacetime permits something that even Einstein himself could not have imagined: time travel.

[Excerpt from the text on the back cover of the edition]