Cosmic Acceleration
The universe is currently expanding at an accelerating rate, driven largely by dark energy, which constitutes a significant portion of the universe's total energy. This phenomenon raises intriguing questions about the nature of the universe, including the possibility of multiple big bangs occurring simultaneously. While inflation theory remains the leading explanation for these observations, the underlying mechanisms are still shrouded in mystery.In this clip
From this podcast

The Joe Rogan Experience
Joe Rogan Experience #610 - Brian Cox
Related Questions
If the universe is x billion years old and the light we are seeing from seconds before the Big Bang is that old and traveled at the speed of light, is the universe in fact expanding faster than the speed of light?
Is the universe expanding faster than the speed of light if it is x billion years old and the light we are seeing from seconds before the Big Bang traveled at the speed of light, as discussed in the episode Joe Rogan Experience #610 - Brian Cox and the clip Cosmic Acceleration?
Is the universe expanding faster than the speed of light if it is x billion years old and the light we are seeing from seconds before the Big Bang is that old and traveled at the speed of light, as discussed in the episode Joe Rogan Experience #610 - Brian Cox and the clip Cosmic Acceleration?