Phil takes a look at the explosive history of our cosmic backyard. In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a ...

A line drawing of the Internet Archive headquarters building façade. An illustration of a magnifying glass. An illustration of a magnifying glass.

The launch of the new courses follows a groundbreaking year for Outlier.org, whose debut courses, Calculus I and Introduction to Psychology, redefined online higher education with their quality and ...

There's a lot to understand about modern astronomy, and this handily sized book has a good go at covering pretty much all of it in just 341 pages! It's not the first to embark on a complete ...

23% started a new career after completing these courses. 18% got a tangible career benefit from this course. Earn a shareable certificate upon completion. This course is designed for anyone who is ...

3 100min lessons to cover the unit one topics introduction to the sky at night, observing constellations and circumpolar stars. The exam questions used in observing constellations can be purchased for ...

THIS book is intended for use as a text in introductory college courses in astronomy. It covers a very wide field, but the subject is so large that, in spite of the considerable size of the volume, ...