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Paula Priscila2004
I'm broken المزيد
تقييم
إلغاء
إرسال
Prof. Erika Hamden
We love an older star! Older stars have had time for planets to form life! But figuring out how old a star is is kind of tricky!#LearnOn#LearningCampaign#science#sciencefacts#scienceexplained المزيد
queridissima oficial
Olha essa turma المزيد