قمر صناعي يصور نجما يهوي في قلب ثقب أسود
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لأول مرة ينجح قمر صناعي تابع لوكالة ناسا في تصوير نجم و
Launched as a beta version in 2009, SafeShare has gained popularity as the safest way to watch and share YouTube and Vimeo videos, and is widely used all around the globe by educators so their students can watch educational material without the fear of inappropriate videos showing up.