Summary of Los extraterrestres EXISTEN, ¿por qué no los hemos visto todavía? | Tenía la Duda 1x10

00:00:00 - 00:25:00

In "Los extraterrestres EXISTEN, ¿por qué no los hemos visto todavía? | Tenía la Duda 1x10," Jorge Nicolás Álvarez, an aeronautical engineer working with NASA, discusses the search for extraterrestrial life and the challenges of human space exploration, particularly the journey to Mars. The latter takes around 7-8 months, and due to the orbit of the planets, spacecraft must orbit as well. The technology necessary for a manned mission to Mars is still being developed, with a focus on protecting astronauts from radiation. The possibility of establishing a base on the Moon as an intermediate point is also mentioned. Space exploration is seen as the forefront of discovery, despite the vastness of the universe and the number of planets, making it statistically probable for there to be hundreds of extraterrestrial civilizations. The Fermi paradox raises questions about why we haven't made contact with them yet, and several possible explanations are presented. The conversation then shifts to human space occupation, with an emphasis on the development of space travel technology that may revolutionize commercial space travel and allow individuals with disabilities to access space.

• 00:00:00 In this section of the video, Jorge Nicolás Álvarez, an aeronautical engineer who works with NASA, discusses the existence of extraterrestrial life. He emphasizes that the search for extraterrestrial life is a serious field of study, with dedicated research teams looking for microbial and intelligent life forms. He mentions the ongoing Mars mission called Perseverance, which is searching for traces of past life on the planet. He explains that the vastness of the universe and the number of planets make it statistically probable for there to be hundreds of extraterrestrial civilizations. However, he mentions the Fermi paradox, which raises questions about why we haven't made contact with them yet. Alvarez suggests possible explanations, such as civilizations not developing enough to visit us, becoming extinct, or being too far away. He concludes by expressing both fascination and anxiety about our place in the universe, and highlights the importance of allocating resources to explore other destinations beyond Mars.
• 00:05:00 In this section of the video, the discussion revolves around the challenges of human space exploration, particularly the journey to Mars. It is explained that reaching Mars takes around 7-8 months, and due to the orbit of the planets around the sun, the spacecraft must orbit as well, rather than travel in a straight line. Currently, the technology necessary for a manned mission to Mars is still being developed, including the means to protect astronauts from radiation. The possibility of establishing a base on the Moon as an intermediate point is also mentioned. The video emphasizes that space exploration is a frontier of science and engineering, and while it may seem experimental or homemade, it is the forefront of discovery. The conversation delves into the question of why funds are allocated to space exploration instead of focusing on addressing challenges on Earth. The response highlights the indirect benefits of space exploration technologies on Earth, such as the development of disposable diapers and infrared technology for detecting breast cancer. It is argued that exploring space is crucial for the long-term survival of human civilization, as the Earth has a limited lifespan and eventually, humanity will need to venture to other planets. The discussion concludes with a mention of the budget allocated to NASA compared to defense, highlighting the relative prioritization of space exploration. The topic of asteroids and potential threats to Earth is touched upon, clarifying that astronomers use a scale to determine the risk of collisions with asteroids based on size and probability. While sensationalist articles may exaggerate the danger, the focus is on understanding and managing the risks associated with asteroids.
• 00:10:00 In this section, the discussion revolves around the existence of extraterrestrials and why we haven't encountered them yet. It is mentioned that there was a close call with a potential asteroid collision that had a 1% chance of hitting Earth. However, it was later discovered that the probability of impact was much lower. The conversation then shifts to Chinese rockets and their uncontrolled falling back to Earth, posing potential risks. The interviewer expresses curiosity about the James Webb telescope and what astronomers see through it. The guest explains that the telescope allows them to observe stars, galaxies, and events from the past due to the light's travel time. The concept of black holes is also discussed, clarifying that they are extremely dense bodies with immense gravity, to the point where not even light can escape their pull. The recent discovery of a black hole 53 million light-years away is mentioned, achieved by combining data from multiple telescopes around the world. Lastly, the interviewee emphasizes the beauty and significance of space exploration, highlighting that many groundbreaking discoveries are not widely understood by the general public.
• 00:15:00 In this section, the conversation shifts towards the concept of time travel and the theory of wormholes. The discussion explains how space-time can be curved, and if a wormhole were to exist, it could potentially connect different parts of space-time. The concept of time dilation due to intense gravity, as depicted in the movie Interstellar, is also mentioned. The hosts touch upon the Mars One mission, which aimed to send people to Mars to live out their lives there but ultimately failed. The conversation ends with one of the hosts disclosing their own attempt to become an astronaut through the selection process.
• 00:20:00 In this section, the discussion revolves around space travel, specifically related to astronauts and the International Space Station (ISS). It is mentioned that interest in space has been increasing, partly due to the efforts of Elon Musk making it fashionable. The ISS serves as a laboratory where astronauts conduct scientific experiments in microgravity, and they also act as test subjects themselves. The maximum time an astronaut has spent on the ISS is around a year, during which they experience changes in bone and muscle mass. The conversation also touches upon the topic of sex in space, although there is no official information available on this. Additionally, the accessibility of space travel is highlighted, with companies like Blue Origin and Virgin Galactic offering tourist flights into space, albeit at a premium price. It is speculated that in the future, the Moon could become a tourist destination and space travel could become more widely accessible, similar to commercial airplane flights.
• 00:25:00 In this section, the conversation shifts towards the possibility of commercial space travel and the inclusion of individuals with disabilities in space missions. The guest explains that the European Space Agency has allocated positions for astronauts with disabilities, highlighting the importance of technology in allowing everyone, regardless of physical abilities, to access space. The idea of commercial space flights is discussed, with the duty of technology being emphasized once again to enable anyone to experience space travel. The host expresses gratitude for the knowledge gained from the discussion and presents the guest with a gift related to the upcoming Artemis mission to the Moon. The section concludes with a mention of the guest's YouTube channel, "Fuga astronautica."