Uploaded January 2023 | Updated September 2026, 2 weeks ago
Guest Speaker: Dr. Deanna Hooper, University of Helsinki
Summary: Are you interested in cosmology, the big bang, the beginning of time, inflation, etc. If you are curious about these topics, this talk will help you answer a lot of questions. In this talk, Dr. Hooper discusses how the Big Bang is not the beginning of the universe. The big bang is the model that sets time to zero. Right after the big bang, the universe experienced inflation which has made it very flat. All these concepts, and more, are explained in this video by Deanna. One amazing fact that she explains is that the human body is made up of 90% stardust and 10% the result of nucleosynthesis from the big bang. This is because all the hydrogen in the universe was created as part of nucleosynthesis after the big bang. All the other chemicals known were created as a result of the evolution of stars.
iTelescope itelescope.net
Cup of Cosmology cupofcosmology.com
Chapters
0:00 Introduction
6:10 The Universe today
7:44 How did we get here
9:15 The first three minutes
10:24 Inflation
16:03 Flatness Problem
19:07 Horizon Problem
23:24 Particles form
27:37 Four forces —1 picosecond
34:14 20 picoseconds
38:20 Simulation animation by David Weir
39:42 Clumps in the soup
42:20 Ten microseconds
43:09 One second
45:14 Annihilation
46:48 Six seconds
47:25 Nucleosynthesis
49:17 Origins of the Periodic Table
51:44 Three minutes
54:45 How do we know what we know
1:10:20 Unanswered questions
1:11:02 The future
1:12:43 Summary
#iTelescope
#astrophotography
#deepsky
#astro
#astronomy
#cosmology
Guest Speaker: Dr. Deanna Hooper, University of Helsinki
Summary: Are you interested in cosmology, the big bang, the beginning of time, inflation, etc. If you are curious about these topics, this talk will help you answer a lot of questions. In this talk, Dr. Hooper discusses how the Big Bang is not the beginning of the universe. The big bang is the model that sets time to zero. Right after the big bang, the universe experienced inflation which has made it very flat. All these concepts, and more, are explained in this video by Deanna. One amazing fact that she explains is that the human body is made up of 90% stardust and 10% the result of nucleosynthesis from the big bang. This is because all the hydrogen in the universe was created as part of nucleosynthesis after the big bang. All the other chemicals known were created as a result of the evolution of stars.
iTelescope itelescope.net
Cup of Cosmology cupofcosmology.com
Chapters
0:00 Introduction
6:10 The Universe today
7:44 How did we get here
9:15 The first three minutes
10:24 Inflation
16:03 Flatness Problem
19:07 Horizon Problem
23:24 Particles form
27:37 Four forces —1 picosecond
34:14 20 picoseconds
38:20 Simulation animation by David Weir
39:42 Clumps in the soup
42:20 Ten microseconds
43:09 One second
45:14 Annihilation
46:48 Six seconds
47:25 Nucleosynthesis
49:17 Origins of the Periodic Table
51:44 Three minutes
54:45 How do we know what we know
1:10:20 Unanswered questions
1:11:02 The future
1:12:43 Summary
#iTelescope
#astrophotography
#deepsky
#astro
#astronomy
#cosmology
