Topic Reading-Vol.3040-8/7/2020

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Topic Reading-Vol.3040-8/7/2020

英語で世界を知ろう!Topic Reading

2020/08/07 Topic Reading-Vol.3040-8/7/2020

Dear MEL Topic Readers,

A massive asteroid shower hit Earth and the moon 800 million years ago, study says

When was the last time you took a shower? Unless you’ve been hospitalized for some time, it probably was hours or a day before. Then, when do you think our planet and the moon took an asteroid shower? It is believed that about 66 million years ago, a meteor the size of a mountain slammed into Earth, filling the atmosphere with gas, dust, and debris that drastically altered the climate, which made dinosaurs went extinct while some mammals, birds, small reptiles, fish, and amphibians survived. You probably have known this presumption, haven’t you?

But some scientists now believe that our planet and the moon were hit by a massive asteroid shower about 800 million years ago and it might have initiated the ice age by the massive impact. How do they find such traces? Those researchers study the moon and asteroid to find what happened so long ago because they hold a more original state than the earth, where volcanic activities, geologic processes like erosion, and weathering erase the trace of the past incident. That’s one of the reasons rockets are sent to the moon and asteroid to bring back the sample of the ancient trace.

Enjoy reading the article and learn about how the earth was impacted by asteroids.

MEL School 三鷹
住所 〒181-0013 東京都三鷹市下連雀3-33-13 三鷹第二ビル101
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