Course finale and summary. We look back over where we've been the last eleven weeks, and bring together all of the main themes of this course on Life ...

How will life, the Universe, and everything end? This lecture looks at the evolution of our expanding Universe to project the prospects for life into ...

What is the future of life on Earth and in our Solar System? The Sun is the source of energy for life on the Earth, but it will not shine forever. Thi...

What does extraterrestrial life look like? This lecture explores current thinking about what extraterrestrial life might be like not by guessing their...

So, Where is Everybody? Interstellar colonization, in principle, is an exponential growth process that would fill the galaxy in a few million years ev...

If we ever detect life elsewhere, how will we go visit? This lecture considers the challenges of interstellar travel and colonization. The problem is ...

Is anybody out there? This lecture reviews the ideas behind SETI, the Search for Extra-Terrestrial Intelligence, an effort to find other intelligent c...

How many intelligent, communicating civilizations live in our Galaxy? We have no idea. One way to approach the question and come up with quasi-quantit...

Are there other Earths out there? Do they have life on them? This lecture looks at the search for ExoEarths - Earth-sized planets in the habitable zon...

What are the properties of the 400+ exoplanets we have discovered so far? This lecture reviews the properties of exoplanets, and finds a couple of sur...