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
- pie9년 이상wow that is cool
- piiiiiiiiiiiiie9년 이상wow wow wow wow wow wow wow
- wow9년 이상this is cool and cleaning is good
- #awesomeness9년 이상now being the nature smart person that i am this planet needs to be clean cause for everyones info junk in this world destroys nature waaa so tragic
- :)9년 이상I don't like this at all...
- pie9년 이상cool very cool
dag9년 이상Cool A Giant Pacman ;)
alyssa059년 이상We should protest the earth and environment beacuse earth is the planet we love ❤- ?9년 이상THIS IS SO COOL! WE MUST CLEAN UP THIS SPACE TRASH!!!! NOW! :)
- Lexi9년 이상Space is awesome