Welcome, Python astronauts, to the intergalactic tour of nested loops in Python! Just like spaceships in formation, nested loops tackle layered problems. Our mission today is to understand the syntax and applications of nested loops, all of which will be enriched with a practical example.

Nested loops are simply loops within loops. They function much like stars and planets in the cosmos. Each celestial body (an outer loop star) has smaller bodies (inner loop planets) revolving around it. Similarly, for each iteration of an outer loop, an inner loop executes completely.

Nested loops follow a hierarchical structure. For each iteration of an outer loop, an inner loop executes fully:

Here's an example of a nested loop using Python's range() function. In this example, i represents different types of spaceships, and j represents various spaceship features:

The code prints: