In late 2008, NASA made a startling announcement: a hole four times the width of the Earth had appeared in the Earth ’ s magnetosphere. Whether the hole in our protective shield would allow in more harmful particles and rays from space is another subject of contention.
美國國家航空暨太空總署（NASA）就在 2008 年底時做了驚人宣布：磁氣圈已經破了個比地球還要寬上 4 倍的大洞，「防護罩」出現破洞，會不會讓更多來自太空的有害粒子、電波等長驅直入，衝擊地表？又成為另一個爭議話題。