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Sun leaves Earth wide open to cosmic rays

Sun leaves Earth wide open to cosmic rays

作者:阮蘅  时间:2019-03-08 01:06:01  人气:

THE sun provides ideal conditions for life to thrive, right? In fact, it periodically leaves Earth open to assaults from interstellar nasties in a way that most stars do not. The sun protects us from cosmic rays and dust from beyond the solar system by enveloping us in the heliosphere – a bubble of solar wind that extends past Pluto. These cosmic rays would damage the ozone layer,