Uploaded May 2026 | Updated September 2026, 2 weeks ago
Can we go back to before time equals zero? What does that even mean?
A physicist explains why cosmology is the oldest science, how we know the age of the universe to within hours, and why the biggest questions in physics are also questions of philosophy.
This is Lecture 1 of 6 in the Intro to Cosmology series. For full access to all 6 lectures, please join my channel as a Member here: youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join for as little as $0.99/month.
This course covers the most fascinating aspects of all of cosmology! It's truly the most captivating journey through the cosmos imaginable; exploring its vastness, the tools used to unravel its mysteries, and the groundbreaking discoveries that have shaped our understanding of the universe.
We examine the evidence for an expanding universe, the forces driving its evolution, and the cosmic fossils that shed light on its distant past and future. We also explore the enigmatic concepts of dark matter and dark energy, their roles in the universe's structure and fate, and the ongoing efforts to unravel these cosmic mysteries.
Enroll now for immediate access to the full 9-hour lecture series, visit petersonacademy.com/?utm_source=Keating
Free weekly email: BrianKeating.com/yt
———
📬 Get the transcript, fascinating bonus content, and my Monday M.A.G.I.C. Message: briankeating.com/yt
🌠 Have a .edu email and live in the USA 🇺🇸? You automatically win a meteorite: BrianKeating.com/edu
🔔 Subscribe: youtube.com/DrBrianKeating?sub_confirmation=1
🎯 Support Into the Impossible on Patreon — get my weekly M.A.G.I.C. Message, unfiltered bonus content, and live monthly Office Hours with me: patreon.com/drbriankeating
⭐ Join this channel for perks, monthly Office Hours, and your name in the Member Roster at the end of every episode:
youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join
📚 My books:
Losing the Nobel Prize (memoir): amzn.to/2sa5UpA
Think Like a Nobel Prize Winner: https://a.co/d/03ezQFu
Focus Like a Nobel Prize Winner: https://a.co/d/hi50U9U
Galileo's Dialogue (first-ever audiobook): https://a.co/d/iZPi9Un
🌐 More:
🏄♂️ Twitter: twitter.com/DrBrianKeating
✍️ Blog: briankeating.com/blog
🎙️ Audio-only: briankeating.com/podcast
#intotheimpossible #briankeating #science #physics #astronomy #cosmology #podcast #universe #bigbang
Can we go back to before time equals zero? What does that even mean?
A physicist explains why cosmology is the oldest science, how we know the age of the universe to within hours, and why the biggest questions in physics are also questions of philosophy.
This is Lecture 1 of 6 in the Intro to Cosmology series. For full access to all 6 lectures, please join my channel as a Member here: youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join for as little as $0.99/month.
This course covers the most fascinating aspects of all of cosmology! It's truly the most captivating journey through the cosmos imaginable; exploring its vastness, the tools used to unravel its mysteries, and the groundbreaking discoveries that have shaped our understanding of the universe.
We examine the evidence for an expanding universe, the forces driving its evolution, and the cosmic fossils that shed light on its distant past and future. We also explore the enigmatic concepts of dark matter and dark energy, their roles in the universe's structure and fate, and the ongoing efforts to unravel these cosmic mysteries.
Enroll now for immediate access to the full 9-hour lecture series, visit petersonacademy.com/?utm_source=Keating
Free weekly email: BrianKeating.com/yt
———
📬 Get the transcript, fascinating bonus content, and my Monday M.A.G.I.C. Message: briankeating.com/yt
🌠 Have a .edu email and live in the USA 🇺🇸? You automatically win a meteorite: BrianKeating.com/edu
🔔 Subscribe: youtube.com/DrBrianKeating?sub_confirmation=1
🎯 Support Into the Impossible on Patreon — get my weekly M.A.G.I.C. Message, unfiltered bonus content, and live monthly Office Hours with me: patreon.com/drbriankeating
⭐ Join this channel for perks, monthly Office Hours, and your name in the Member Roster at the end of every episode:
youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join
📚 My books:
Losing the Nobel Prize (memoir): amzn.to/2sa5UpA
Think Like a Nobel Prize Winner: https://a.co/d/03ezQFu
Focus Like a Nobel Prize Winner: https://a.co/d/hi50U9U
Galileo's Dialogue (first-ever audiobook): https://a.co/d/iZPi9Un
🌐 More:
🏄♂️ Twitter: twitter.com/DrBrianKeating
✍️ Blog: briankeating.com/blog
🎙️ Audio-only: briankeating.com/podcast
#intotheimpossible #briankeating #science #physics #astronomy #cosmology #podcast #universe #bigbang
