english: And the reason that it's blinking is because there are planets that are going past it all the time, and it's that special orientation where the planets are blocking the light from the star that allows us to see that light blinking.
non_english: De oorzaak van het knipperen is dat er planeten voorlangs gaan, waardoor die planeten het licht van de ster blokkeren wat wij als knipperen zien.