Ep 7. Edge Of The Universe

How the Universe Works season 8 episode 7, titled "Edge Of The Universe," delves into the mysteries of the universe beyond what we can observe. The episode explores the limits of our current technology and understanding of the cosmos as experts attempt to unravel the secrets of what lies at the very edge of the observable universe.

The episode starts with a brief overview of the current known size of the universe, which is estimated to be around 93 billion light-years across. However, this size only accounts for what we can see with our current technology, which is limited by the age of the universe itself. As the universe continues to expand and age, more objects will move beyond the observable horizon, leaving only darkness in their wake.

From there, the episode explores the concept of the cosmic microwave background radiation (CMB), which is thought to hold clues about the universe in its infancy. The CMB can be traced back to around 380,000 years after the Big Bang and is believed to be the leftover radiation from the universe's early expansion. Scientists have been able to study this radiation and make discoveries about the universe's composition and history, providing insight into the universe's evolution and the mysteries that lie within.

The episode also delves into the concept of the "Great Attractor," a gravitational anomaly that is pulling millions of galaxies towards it. The Great Attractor is located behind the Milky Way, making it difficult to observe, but scientists have been able to map its effects on the surrounding galaxies. By studying the movement of these galaxies, researchers hope to gain a better understanding of the Great Attractor's mass and composition, which could help unlock the secrets of the universe's structure.

In addition to these concepts, the episode also explores the possibility of multiple universes and the potential for alternate realities. This theory, known as the multiverse, suggests that our universe is just one of many, with each universe having its own physical laws and properties. While this theory is still largely speculative, it has gained significant traction in the scientific community and could provide insight into the mysteries of the universe beyond our own.

Throughout the episode, experts in the fields of astronomy, cosmology, and physics provide insight and commentary on the topics being discussed. They share their knowledge and experiences from the forefront of scientific discovery, shedding light on some of the most profound mysteries of the universe.

Overall, "Edge Of The Universe" is a fascinating exploration of the limits of our current understanding of the cosmos. By diving into these complex concepts, the episode provides a glimpse into the cutting edge of scientific research and the potential for even greater discoveries in the future. With stunning visuals and expert commentary, this episode is a must-watch for anyone interested in the mysteries of the cosmos.