Image caption, STEP 4 - DRAW THE SPIRAL: Starting with the first square, draw a quarter circle inside it from corner to corner. Then do the same in the second square and so on, creating a growing ...

Have you ever heard of the Fibonacci sequence? Or the Golden Ratio? Or the Golden Spiral? These mysterious numbers and shapes are all connected to each other. If you look closely, they can be ...

This week’s small-telescope target is the Golden Earring ... neighbor This week’s second large-telescope target is barred spiral galaxy NGC 3109 in the constellation Hydra the Water Snake.