But freak solar activity yesterday saw the stunning auroral display stretch much further than usual, as it was spotted by stunned stargazers across half of northern America.
但是昨天反常的太阳活动造福了北美人民:超级绚丽的北极光此次的延伸范围广得多,使得半个美国的天文爱好者大饱眼福,亲眼见证了北极光。
The auroral absorptions are related to the solar activity.
极光吸收与太阳的活动性密切相关。
The auroral absorptions are related to the solar activity.
极光吸收与太阳的活动性密切相关。
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