We look up and we look down and in both directions we chill with awe. We look up to the universe and envision hundreds of billions of galaxies. We look down to the atom and...
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6 videos
53:42
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Why do scientists use the word beauty to describe the universe? Gaze at the universe with a knowing eye. There’s beauty on every level—simplicity and regularity, even...
1:16
What do scientists mean when they call the laws and regularities of nature beautiful? On the largest supra-cosmic scales, and on the smallest sub-atomic scales, why do...
5 videos
55:55
Do intelligent aliens exist? Who knows? But here’s what we do know: the potential existence of intelligent aliens probes meaning and purpose in the universe. What would...
9 videos
1:15:50
It seems absurd in a universe with 100 billion galaxies, each with billions of stars and planets, that we are the only intelligent life. So where are all the others? This is...
1:19:59
Our universe has been developing for about 14 billion years, but human-level intelligence, at least on Earth, has emerged in a remarkably short period of time, measured in...
10 videos
1:27:53
The Copernican Principle asserts that humans are not special, that we should expect to find ourselves in an ordinary place or position. But if humanity continues for billions...
50:35
Our universe has existed for about 14 billion years. Looking backwards, that’s about 1 followed by 10 zeros. Looking forwards, into the far far future, cosmologists can...
42:07
When we speak about the future of the universe, we mean when our sun burns out, when galaxies collide, when everything flies apart and ultimately evaporates. Do the untold...
32:15
Why does alien intelligence hold such fascination? Can we even conceive of what they might be like? To appreciate intelligent, sentient life in the universe, right now we...
1:15:11
Most scientists assume that the universe must be populated with innumerable alien intelligences and civilizations—after all, there are billions of galaxies each with...
1:32:28
What does it mean to ask about the end of the universe? Can the universe even have an end? What would end? In the far, far future, what happens to stars, galaxies, and black...
1:21:58
