PBS Space Time Season 2019 Episode 9 Is Dark Energy Getting Stronger?

PBS Space Time season 2019 episode 9, titled "Is Dark Energy Getting Stronger?" delves deep into the mysteries of the universe and attempts to decode the intriguing concept of dark energy. Hosts Matt O'Dowd and Dr. Pamela Gay take the audience on a journey to understand the nature of dark energy, its origins, and its role in shaping the fate of the universe.

The episode begins by introducing the concept of dark energy and explaining its importance as it pertains to space and time. Dark energy is the name given to the unknown force that is causing the universe to expand at an increasing rate. The concept of dark energy was first introduced in the late 1990s by two independent teams of scientists who were studying the expansion rate of the universe.

The episode then explores the various theories about the nature of dark energy and the ways in which it could be affecting the universe. One theory suggests that dark energy is a property of space itself, while another theory suggests that it may be linked to the Higgs field. The show explains the current uncertainty surrounding dark energy and how it continues to be an important area of research in the field of cosmology.

The hosts then take a closer look at the evidence of dark energy and the challenges that scientists are facing in attempting to measure it. One such issue is the fact that dark energy cannot be directly detected, leading scientists to rely on indirect measurements based on observations of supernovae and galaxies. Through various illustrations and animations, the episode explores these measurements and the methods used to make them.

The episode also looks at the history of the universe and how dark energy has played a role in its evolution. The hosts explain how dark energy has affected the expansion rate of the universe since the Big Bang and how it is likely to continue to do so in the future. They discuss the potential outcomes of this accelerated expansion, including the possibility of a Big Rip scenario in which the universe would expand at an increasing rate until everything is torn apart.

Finally, the episode explores the question of whether dark energy is getting stronger over time. Some scientists hypothesize that the force of dark energy may be increasing over time, which would have incredible implications for the fate of the universe. The hosts take a closer look at this theory and weigh the evidence that has been gathered thus far.

In summary, PBS Space Time season 2019 episode 9 is a fascinating journey through the mysteries of dark energy. Through clear explanations and expert insights, the episode offers a comprehensive look into one of the most compelling areas of research in modern cosmology. With stunning visuals and a captivating narrative, the episode is sure to leave viewers with a new appreciation for the complex and awe-inspiring nature of the universe.