Here's why:

* Temperature is a spectrum: Stars come in a wide range of sizes, masses, and temperatures. The Sun is a fairly average star in terms of temperature.

* Blue giants and supergiants: Some stars, particularly blue giants and supergiants, are much hotter than the Sun. These stars have much larger masses and burn through their fuel much faster, leading to extremely high temperatures.

* Examples: Some examples of stars hotter than the Sun include:

* Rigel: A blue supergiant in the constellation Orion, about 10 times hotter than the Sun.

* Spica: A blue giant in the constellation Virgo, about 6 times hotter than the Sun.

* Sirius A: The brightest star in the night sky (excluding the Sun), about twice as hot as the Sun.

So, while the Sun is the star we know best, it's definitely not the hottest one out there!