"It means cleaning house, narrowing the viable paths forward, and no longer spending energy on what are evidently dead ends." ...

If the moon looks a bit bigger, it’s not your imagination. The last supermoon of the year is making its appearance on ...

Introduction to Astronomy is a college class usually filled with excitement and a lot of questions about outer space. Questions like: What are black holes? Are there planets out there that are ...

All societies have had ways of understanding nature based on their experiences of it. For example, farmers need to understand the seasons and weather to know when to plant and harvest their crops.

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a measure of distance. The confusion arises from the “year” that comes at the ...