Наблюдатели

• 

  Deanna Brunson

  https://sciencealert.co.uk/%EB%A9%94%EC%9D%B4%EC%A0%80%EC%82%AC%EC%9D%B4%ED%8A%B8%EC%97%90%EC%84%9C%EC%9D%98-%EC%95%88%EC%A0%84%ED%95%98%EA%B3%A0-%EC%8B%A0%EB%A2%B0%ED%95%A0-%EC%88%98-%EC%9E%88%EB%8A%94-%EB%A8%B9%ED%8A%80/