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