NASA @NASA
"Black holes" is a highly searched term about our universe. There’s a fascination with the idea that there is a region of space having a gravitational pull so strong, nothing could escape its grasp. So what are they? Sort out the facts from the fictions: https://t.co/rOCQMSCpAR https://t.co/LTRQf0I4JM — PolitiTweet.org