NASA @NASA
☄️ Comet 2I/Borisov, discovered by an amateur astronomer, is the length of nine football fields. and contains a treasure trove of clues to worlds too far to reach with modern technology. What we learned from @NASAHubble about this interstellar visitor: https://t.co/KOPKQntylb https://t.co/hBdseiSQmy — PolitiTweet.org