1930年,该天文台一名23岁的新人发现了这颗行星的位置。发现者克莱德•汤博接到的任务是,通过比照拍摄时间相隔数周的星空照片来搜寻任何移动的天体。最终汤博发现了一个新天体,并将这一发现呈交给哈佛大学天文台。一个11岁的英国小女孩用罗马神话中的冥神为这颗新行星命名后,人类就开始将冥王星纳入我们的太阳系。
But in 2003, an astronomer found a larger object beyond Pluto — which he named Eris, according to NASA. The new information caused a bunch of other astronomers to question what really makes a planet a planet, and they decided, based on size and location, that Pluto just didn't make the cut. Neither did Eris, actually. Pluto was demoted to a dwarf planet.
但是,根据美国宇航局的消息,2003年,一位天文学家发现了冥王星之外的一个更大的天体,并将其命名为阋神星。这一新发现促使一大批天文学家开始质疑,成为一个行星的条件到底是什么,并且基于冥王星的体积和位置决定冥王星不够资格成为行星。阋神星也没能跻身行星的行列。冥王星自此被降级为矮行星。
Needless to say, elementary schools kids were pretty bummed.
不用说,这么一来让小学生们挺郁闷的。
But there may be hope. Researchers have recently been debating whether to make Pluto a planet again.
【你在学校里学到的这6个“事实”已经不再准确】相关文章:
最新
2020-09-15
2020-09-15
2020-09-15
2020-09-15
2020-09-15
2020-09-15