Where are Lectures 1-4? This is a good question, and one I've gotten from many listeners....
02:32
Welcome to the Astronomy 162 Lecture Podcasts! This is a brief message from me explaining the...
03:07
Lecture 44: Life, the Universe, and Everything (Life Part II)
How can we search for extraterrestrial intelligence, and what are we looking for? This second...
45:56
Lecture 43: Life in the Universe, Part I
Are we alone in the Universe? This is the first part of a 2-part lecture that will explore the...
47:54
Can we travel through time? This is not a frivilous, science-fiction kind of question. Certain...
34:05
Lecture 41: Dark Matter & Dark Energy
We are not made of the same matter as most of the Universe! This surprising conclusion, that the...
43:31
Lecture 40: The Once and Future Sun
How will the Sun evolve? The Sun is now a middle-aged, low-mass, Main Sequence star in a state...
46:06
Lecture 39: The Fate of the Universe
What is the ultimate fate of the Universe? The ultimate fate of the Big Bang is either expansion...
45:42
Lecture 38: The First Three Minutes
What was the Universe like from the earliest phases immediately after the Big Bang to the present...
42:55
Lecture 37: The Whispers of Creation
Is there any evidence that the Universe was very hot and dense in the distant past as predicted...
42:18
The Universe today is old, cold, low-density, and expanding. If we run the expansion backwards,...
45:02
Lecture 35: The Cosmic Distance Scale
How do we measure distances on cosmic scales? This lecture describes the rungs in the cosmic...
42:05
Lecture 34: The Expanding Universe
How did we discover that the Universe is Expanding? What does it mean that it is expanding?...
43:49
Lecture 33: Einstein's Universe
What are the implications of Relativity for the Universe? This lecture introduces the...
39:31
Lecture 32: Space, Time, & Gravity: General Relativity
What is gravity? Newton left that question unanswered when he formulated his inverse square law...
47:56
Lecture 31: A Tale of Two World Views: Special Relativity
What are space and time? To begin our exploration of the evolving Universe, we must first...
43:03
Lecture 30: Active Galaxies & Quasars
What are Active Galaxies and Quasars? We have good reason to think that buried deep in the...
42:51
Lecture 29: When Galaxies Collide
What happens if two galaxies collide? The average distance between bright galaxies is only about...
41:26
Lecture 28: Groups & Clusters of Galaxies
Galaxies are found in groups and clusters, and these are only the start of a hierarchy of cosmic...
39:58
Lecture 27: Spirals, Ellipticals, & Irregular (Oh My!)
What are the different types of galaxies? What hints can they give us as to the structure and...
40:34
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