If you're outside soon after nightfall this week — say around 10 p.m. your local time — you may notice a large and slender triangle high in the southern sky, a celestial geometry display of two stars ...

We're now just past the midpoint of astronomical winter — that moment marking the midway point between December's winter solstice and March's vernal equinox. That moment took place at 4:11 p.m.

If you take a moment to look around, you will find that our environment is a montage of geometric shapes. They are the building blocks of the world around us and are more important than we realize as ...