Our entry course has been a hit for decades. But one topic always sparked too many questions to fit: the search for extraterrestrial life. So, we’re giving it its own course.

Over four lessons, we’ll cover the basics of biological life, the search for water in our solar system, and the hunt for exoplanets and technosignatures. We’ll wrap up with the Fermi Paradox: if the odds of life are so high, why haven't we heard from anyone?

A pilot version starts in March with a mixed audience to fine-tune the content. You can still sign up for that now.

The final version launches later this year.