In the movie Interstellar, the hopes of humanity swirl around the event horizon of a giant black hole named Gargantua, which warps time, space and starlight. Through the wormhole at its center, a team of scientists is instantly transported to a solar system 100 billion light years from Earth, where the gravitational effects of the black hole distort time itself.
Do giant black holes exist? Can they warp time and space? Is time travel possible? To reality check the science of Interstellar, I spoke with theoretical physicist Brian Greene.