Ep 4. Dead Or Alive

In Wonders of the Solar System season 1 episode 4, titled "Dead or Alive," we journey to Mars to investigate the possibility of life on the red planet. Professor Brian Cox explores the history of Mars and how it evolved into the lifeless planet we know today.

The episode begins with a look at the features of Mars, including the massive canyon system and the Olympus Mons volcano, the largest in the solar system. Professor Cox explains how the lack of plate tectonics has allowed these geological features to remain unchanged for billions of years, giving scientists a glimpse into the planet's past.

Next, we join Professor Cox and a team of scientists as they search for signs of life on Mars. They investigate the possibility of microbial life in the subterranean caves and hot springs that may exist on the planet's surface. They also examine samples of Martian rocks brought back to Earth by the Mars rover missions to determine whether they contain any traces of organic compounds.

As the team continues their search, Professor Cox discusses the challenges facing any potential life on Mars, including the thin atmosphere, the lack of protective magnetic field, and the harsh radiation environment. He also explains how the planet's geological features, such as its massive dust storms and deep canyons, could play a role in determining whether life could survive on the red planet.

Throughout the episode, stunning visuals and animations bring the wonders of Mars to life, from the sweeping vistas of the planet's surface to the intricate details of its geological formations and the hypothetical creatures that may have once lived there.

In the end, while the search for life on Mars may still be inconclusive, the episode leaves viewers with a deeper understanding of the history and unique features of this fascinating planet. As Professor Cox notes in the closing moments, the exploration of Mars is an ongoing journey, and our understanding of the planet and its potential for life continues to evolve.

"Dead or Alive" is a gripping and thought-provoking episode that will appeal to anyone with an interest in space, science, and the mysteries of the universe.