Ep 7. Living in Space

In The Universe season 3 episode 7 titled Living in Space, viewers are taken on a journey into the vast and extreme world of living in space. From the International Space Station (ISS) to potential astronaut habitats on the moon and Mars, this episode explores the challenges and innovations of life beyond Earth's atmosphere.

The episode begins by reminding viewers of the essential requirements for life on Earth: air, water, food, and shelter. In space, these basic needs become even more complicated. For example, the air supply on the ISS must be continually replenished and filtered. The ISS also has to carefully manage liquid waste, which is converted into drinkable water through a complex filtration system. As for food, astronauts consume a varied diet that includes freeze-dried meals and fresh produce grown in space.

The episode then delves into the psychological impact of living in space. Being in a confined and isolated environment for months or even years can take a toll on an astronaut's mental health. Astronauts on the ISS have access to virtual reality technology, exercise equipment, and regular communication with family and friends on Earth to combat feelings of isolation and boredom. Additionally, they participate in scientific experiments and maintenance tasks that provide a sense of purpose to their daily routines.

The episode also explores the physical toll living in space can take on the human body. Without gravity, astronauts' muscles and bones deteriorate, and they experience changes in blood flow that can impact their eyesight. To combat these effects, astronauts must adhere to a strict exercise regimen and participate in medical studies that help scientists understand the long-term effects of microgravity on the human body.

The episode goes on to discuss the challenges of space exploration beyond the ISS. Unlike the ISS, which is in low Earth orbit, longer missions to the moon or Mars will require astronauts to leave Earth's protective magnetic field and be exposed to lethal levels of radiation. To address this issue, scientists are developing new materials and technologies that can shield astronauts from harmful radiation.

Another crucial challenge of living in space for extended periods is the need for sustainable resources. For example, future Mars missions may require astronauts to grow their food to be self-sufficient. To this end, scientists are researching plant growth and cultivation in microgravity environments, such as the Veggie experiment on the ISS.

Finally, the episode touches on the potential commercialization of space. With companies like SpaceX and Blue Origin working to develop reusable rockets, space tourism and even permanent settlements on the moon and Mars could become a reality in the not-too-distant future.

In summary, The Universe season 3 episode 7 Living in Space explores the challenges and innovations of life beyond Earth's atmosphere. From managing essential resources like air, water, and food to combating the physical and psychological effects of living in space, this episode provides a fascinating look at the extreme world of space exploration and the potential for a future beyond our planet.