Subtitles and vocabulary
Click the word to look it up Click the word to find further inforamtion about it
B2 star galaxy black hole gravitational energy companion
3 Ways to Slingshot a Star
- 2 0林宜悉 posted on 2020/03/30
Video vocabulary
Click the word to look it up Click the word to find further inforamtion about it
B2 star galaxy black hole gravitational energy companion