7,600,386 المشاهدات ·
2,389,606 المشاهدات ·
Q&A 122: How Will We Know It s Alien Life? And More...
0
0
2,805 المشاهدات·
10/22/23
في
Discovery
In this week s episode, I answer questions about alien life, why the ISS is at its current altitude, and of course, many questions about black holes. 00:00 Start 00:11 How do we know it s...
أظهر المزيد
0 تعليقات
sort ترتيب حسب
7,600,386 المشاهدات ·
2,389,606 المشاهدات ·
