Both space and time were created by the expansion of the universe following the Big Bang. Before the Big Bang, there was no space or time. Now we have space and time, and we call the fabric in which the universe exists spacetime.
Good question. I'm not aware that it is even possible to know what existed (if anything) before the Big Bang.
NoAnswer:Present thinking is that the Big Bang created space, time and energy/matter. As a consequence at the expanding edge of the Universe there is a region of no space or time.
The big bang marks the beginning of the expansion of space-time from minute to enormous. It marks the beginning of time t = 0. I don't know of any discussion of energy needed for the 'banging' of the big bang. Since it marks the beginning of time it makes no sense for energy to be needed to start the Universe with a bang, for this energy would thus need to be around 'before' the beginning of time. Also, the big bang is technically not an explosion, but an ('explosive') expansion of great great great great great great magnitude. This however does not resolve whether energy need be supplied for a bang or for an expansion. The answer seems to lie in a technicality of time.
The Big Bang Theory present the theoretical premise for the causation, termination, and continuation of an evolutionary expansion of the universe. The Big Bang promotes that the universe is Time bound (or has a finite existence), that the universe is expanding (within the dimensional limits of Space and Time), that the universe is evolving a set amount of matter and energy while it is expanding over time, and that the universe is homogeneous and isotropic with respect to Space and Time.
The Big Bang Theory presents the theoretical premise for the causation, termination, and continuation of an evolutionary expansion of the universe. The Big Bang promotes that the universe is Time bound (or has a finite existence), that the universe is expanding (within the dimensional limits of Space and Time), that the universe is evolving a set amount of matter and energy while it is expanding over time, and that the universe is homogeneous and isotropic with respect to Space and Time.
The Big Bang supports interpreted observational evidence of the Cosmic Microwave Background Radiation (CMBR) barrier that the universe is Time bound (or has a finite existence), that the universe is expanding (within the dimensional limits of Space and Time), that the universe is evolving a set amount of matter and energy while it is expanding over time, and that the universe is homogeneous and isotropic with respect to Space and Time.
NoAnswer:Present thinking is that the Big Bang created space, time and energy/matter. As a consequence at the expanding edge of the Universe there is a region of no space or time.
It was microscopic. At the first moment of the bang the entire universe, that is the entire space-time continuum and all of the energy within it were spaller than an atom.
The big bang marks the beginning of the expansion of space-time from minute to enormous. It marks the beginning of time t = 0. I don't know of any discussion of energy needed for the 'banging' of the big bang. Since it marks the beginning of time it makes no sense for energy to be needed to start the Universe with a bang, for this energy would thus need to be around 'before' the beginning of time. Also, the big bang is technically not an explosion, but an ('explosive') expansion of great great great great great great magnitude. This however does not resolve whether energy need be supplied for a bang or for an expansion. The answer seems to lie in a technicality of time.
Energy and space and time all came into existence when the universe was created. It happened when the Big Bang happened 13.7 billion years ago. We have no scientific understanding of anything before the Big Bang.
At the time of the big bang (approximately 13.7 billion years ago) there was no solid matter in the universe, it was all energy, located in space and time. The universe had to cool down considerably before some of the energy was able to condense into matter.
There was no such thing as 'space' before the Big Bang. In fact, there was no such thing as 'before' before the Big Bang. Space and time both began with that event.
The Big Bang Theory present the theoretical premise for the causation, termination, and continuation of an evolutionary expansion of the universe. The Big Bang promotes that the universe is Time bound (or has a finite existence), that the universe is expanding (within the dimensional limits of Space and Time), that the universe is evolving a set amount of matter and energy while it is expanding over time, and that the universe is homogeneous and isotropic with respect to Space and Time. The Big Bang tell us that the universe is Time bound (or has a finite existence), that the universe is expanding (within the dimensional limits of Space and Time), that the universe is evolving a set amount of matter and energy while it is expanding over time, and that the universe is homogeneous and isotropic with respect to Space and Time.
At the very start it was just energy. Also, according to most scientists, space and time were created then.
The Big Bang Theory present the theoretical premise for the causation, termination, and continuation of an evolutionary expansion of the universe. The Big Bang promotes that the universe is Time bound (or has a finite existence), that the universe is expanding (within the dimensional limits of Space and Time), that the universe is evolving a set amount of matter and energy while it is expanding over time, and that the universe is homogeneous and isotropic with respect to Space and Time.
The Big Bang Theory present the theoretical premise for the causation, termination, and continuation of an evolutionary expansion of the universe. The Big Bang promotes that the universe is Time bound (or has a finite existence), that the universe is expanding (within the dimensional limits of Space and Time), that the universe is evolving a set amount of matter and energy while it is expanding over time, and that the universe is homogeneous and isotropic with respect to Space and Time.
The Big Bang Theory present the theoretical premise for the causation, termination, and continuation of an evolutionary expansion of the universe. The Big Bang promotes that the universe is Time bound (or has a finite existence), that the universe is expanding (within the dimensional limits of Space and Time), that the universe is evolving a set amount of matter and energy while it is expanding over time, and that the universe is homogeneous and isotropic with respect to Space and Time.
A singularity is a point in space-time in which matter and energy are infinitely dense, as at the center of a black hole or at the moment of the Big Bang.