The crater Tycho Brahe does not always face the Earth. It's a common misconception that the Moon always shows the same side to Earth.

Here's why:

* Lunar Libration: While the Moon's rotation period is the same as its orbital period (which is why we only see one side), there's a slight wobble called libration. This wobble, caused by variations in the Moon's orbital speed and slight tilt, allows us to see about 59% of the Moon's surface over time.

* Tycho Brahe's Location: The crater Tycho Brahe is located on the side of the Moon that we typically see. However, due to libration, it can sometimes appear slightly more towards the edge or even partially hidden.

In short, Tycho Brahe is not always facing the Earth, but it's frequently visible due to its location and the phenomenon of lunar libration.