The burgeoning space industry and the technologies society increasingly relies on—electric grids, aviation and ...

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 ...

The annual competition for professional and amateur astrophotographers released its shortlisted images, which capture the ...

Have you ever wondered what it feels like to walk inside a rainbow or see a river run backwards? Around the world, ...