Hello, Space Explorer! Today, we're going to delve into the TypeScript data types. Think of data types as different celestial objects in our universe, each with its unique properties and uses. We'll explore five core TypeScript types — Number, String, Boolean, Void, and Undefined.

In TypeScript, types are categorized based on their characteristics. Understanding this is akin to realizing that Earth is a planet, not a star or an asteroid. This knowledge helps us predict behaviors in different situations.

First, we're going to uncover numerical values through the Number type, which stores numbers such as 10 (integer numbers) or -2.19 (floating point numbers, i.e., numbers with a decimal point). Let's visualize it:

Upon running this code, you'll see 8 and printed — these are the values of our declared and variables.