21 Grams, Missing Cosmonauts, Sound of Death (S01E05)

Dr. Duncan Macdougall, a Boston medic, embarks on a quest to scientifically validate the existence of the soul by weighing a patient at the moment of death. He theorizes that any weight loss would indicate the soul's departure, potentially bridging science and religion. However, recruiting individuals willing to die for his experiment proves challenging, leaving his findings and their implications hotly debated even today. In the early days of space exploration, two amateur radio enthusiasts tune into broadcasts from Soviet space missions. One fateful day, they intercept a chilling distress signal, raising questions about whether Yuri Gagarin was truly the first person in orbit or if earlier cosmonauts were lost to history. Meanwhile, French scientist Vladimir Gavreau discovers a mysterious energy in his lab that has harmful effects on humans. As his research takes a darker turn, questions arise regarding whether he has inadvertently created a new kind of weapon of mass destruction, leaving the true nature of his findings cloaked in secrecy.