You are given a sentence in English. Your job is to translate the English sentence into Arabic.

And the reason that it's blinking is because there are planets that are going past it all the time, and it's at special orientation where the planets are blocking the light from the star that allows us to see that light blinking.
والسبب في أنه يومض هو أن هنالك كواكب تمر من أمامه طول الوقت ، وتكون عند منحنى معين حيث تحجب الكواكب الضوء الصادر من النجم مما يسمح لنا برؤية وميض ذلك الضوء.