In Christopher Nolan’s latest film Interstellar, the protagonist played by Matthew Mcconaughey finds himself floating through an alternate dimension after diving into a black hole. In the dimension, Mcconaughey is able to view different sequences of time through a wormhole-type entity located in the bookshelf of his daughter’s bedroom. Ever since their existence was proven with Einstein’s theory of general relativity in 1915, black holes have become the basis of several science fiction films such as Nolan’s Interstellar. Most of these films portray black holes as “portals” to alternate dimensions or universes, ultimately distorting the general public’s understanding of the subject.
According to Einstein’s theory of General Relativity, a star in the universe will curve and distort the space around it as it is formed. The more massive and compact the star, the more space is distorted. When the star finally burns out all of its nuclear fuel, it then cools and shrinks, forming a bottomless pit in spacetime, otherwise known as a “black hole”. The gravitational pull of these massive holes are so great that not even light can escape them.
Due to this immense gravitational pull, anything that comes close to the black hole will automatically get pulled inside of it, ultimately becoming a part of it. If you were to “dive” into a black hole like Mcconaughey’s character in Interstellar, the strong gravitational pull would drag your body out further and further, stretching you to the point of which the atoms that you are made up of get disassembled. So, to put it bluntly, there is no “other side” of a black hole; the only thing these massive pits lead to would be a very painful (yet very epic) death.
However, in bigger black holes, death isn’t so untimely. Every black hole contains a boundary called the “event horizon”, the point in which gravity becomes so strong that everything, including light itself, is dragged into the black hole to the point of no escaping. The bigger the black hole, the more likely it is to reach the event horizon without getting pulled apart and destroyed, allowing you the explorer to further “inspect” the inside of the black hole. However, since this type of “inspection” without destruction is virtually impossible , we’ll just leave the black hole exploration to Mr. Mcconaughey and his team of courageous astronauts.
“What is on the Other Side of a Black Hole?” by Frasier Chan http://www.universetoday.com/14068/what-is-on-the-other-side-of-a-black-hole/
“Into a Black Hole” by Stephen Hawking http://www.hawking.org.uk/into-a-black-hole.html