The Quest To Find A Solution To Clean Space Junk Continues
언어
읽기 수준
기사 듣기
When humans began Space exploration about 55 years ago, they had no intention of leaving behind equipment that had served its purpose. It could after all, easily fall to Earth and harm innocent people. But that fear subsided in 1964 when American research satellite Vanguard 1 continued to rotate in orbit even after it had lost all contact with ground scientists. Since then researchers have become increasingly comfortable about leaving trash behind.
이 기사의 나머지 부분을 읽고 학습 도구에 액세스하려면 등록해야합니다.
지금 학습 시작하기댓글 450개
- mopehead059년 이상cool
- amazeballs9년 이상love it
- erick diaz9년 이상i wish i can go to space one day
- some kid 9년 이상i hate this class more than life its self. oml plllllssss someone ANYONE helpkkppvekjwqfsdougf debrwginofepvrijwcfgo eburwsh.
- spaghetti sauce10년 이하im so hungry
- mr.C is coooool10년 이하mr.C is a pretty coool dudeeee. lol
- cool yoselff10년 이하im in class at the moment and i dont want to be here, i rather be in hell. id feel way more welcome and comfotable. tbh.
- erick10년 이하this is awesome
- Nick marra 10년 이하i agree with cole
- krissie 10년 이하this article is lit