How Far Away is Proxima B?
0
0
4,153 צפיות·
12/15/23
ב
探索
How far away are our closest neighbors in the galaxy? How long would it take us to get there? Join StarTalk All-Stars host and SETI Institute Senior Astronomer Seth Shostak and his guest, Penn...
להראות יותר
0 הערות
sort מיין לפי
