Leaving Earth: What awaits us in deep space? | Sabine Hossenfelder, Matt O'Dowd, Anders Sandberg...

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With billionaires planning missions to Mars, researchers at the University of Cambridge potentially discovering life on K2-18b, and NASA’s probe heading to Jupiter’s icy moon Europa, it seems that we are at a crucial moment in the history of the human race. By the time the century is over, we may well be an intergalactic civilisation, and we also may have proof that we are not alone in the universe. But, how did we get here? What technology led to early space exploration like the Apollo Missions? How have our space ships and understanding of interstellar travel improved since then? And what really lies ahead for humankind? #SpaceTravel #Mars #Space #science #astrophysics #physics #AlienLife #ApolloMissions #Universe #K218b #astronomy #nasa Debates and talks featured (available on iai.tv with a free trial): How to leave the planet (2021) https://iai.tv/video/how-to-leave-the-planet-dallas-campbell?utm_source=YouTube&utm_medium=description&utm_campaign=space-travel-highlights The adventure of space (2020) https://iai.tv/video/the-adventure-of-space-barry-smith-moon-landings?utm_source=YouTube&utm_medium=description&utm_campaign=space-travel-highlights To the edge of space (2014) https://iai.tv/video/to-the-edge-of-space?utm_source=YouTube&utm_medium=description&utm_campaign=space-travel-highlights Lost in space (2018) https://iai.tv/video/lost-in-space?utm_source=YouTube&utm_medium=description&utm_campaign=space-travel-highlights Adventures in space (2025) https://iai.tv/video/adventures-in-space?utm_source=YouTube&utm_medium=description&utm_campaign=space-travel-highlights How to land on another planet (2019) https://iai.tv/video/how-to-land-on-another-planet?utm_source=YouTube&utm_medium=description&utm_campaign=space-travel-highlights The end of everything (2022) https://iai.tv/video/the-end-of-everything?utm_source=YouTube&utm_medium=description&utm_campaign=space-travel-highlights Massive gravity (2020) https://iai.tv/iai-academy/courses/info?course=massive-gravity Breathing life into the laws of physics (2021) https://iai.tv/iai-academy/courses/info?course=breathing-life-into-the-laws-of-physics Dive into our full archive, including more debates and solo talks from the speakers you see here and more. Science channel: https://iai.tv/debates-and-talks?channel=science%3Athe-universe-and-reality&utm_medium=description&utm_campaign=space-travel-highlights 00:00 Introduction 01:07 CHAPTER ONE: A Brief History of Space Travel 01:14 Dallas Campbell: Early ideas for rocket ships, space suits, and lunar missions 05:36 Barry C. Smith: One small step for a man, one giant leap for mankind 12:01 CHAPTER TWO: The Challenges of Space Travel 12:09 Maggie Aderin-Pocock: Life on Mars and solar activity 16:00 John Ellis and Anders Sandberg: Interstellar travel, human DNA, and light sail probes 18:51 Avi Loeb and Matt O’Dowd: Martian caves and artificial space habitats 20:16 Elie Allouis, Kerry Sanz, and Stephen Kyle-Henney: Modern technology for space exploration 26:57 CHAPTER THREE: The Urgency of Space Travel 27:04 Anders Sandberg: Spreading life and consciousness across the universe 30:13 Eric Weinstein and Sabine Hossenfelder: Nuclear war, quantum technology, and faster-than-light travel 34:30 CHAPTER FOUR: Alien Life, Cultural Change, and Time Dilation 34:36 Carol Cleland and Matt O’Dowd: Religion, ancient civilisations, and future humans 37:23 John Ellis: Should we resurrect alien species? 38:23 Claudia de Rham: Relativity, massive gravity, and time dilation 40:48 Sara Walker: Bio-signatures of alien life All images are sourced from Wiki Commons, Archive.org, Flickr, GetArchive, Pexels, PicsArt, and DeviantArt.