带环小行星 – 2级
18-07-2023 15:00
一颗巨大的小行星让科学家们大吃一惊，他们发现这颗小行星竟然有星环。
这颗小行星宽250公里。它是已知拥有这种星环的最小天体。人们过去一直认为星环只存在于土星或海王星等大行星周围。
当小行星在恒星前方移动时，科学家们注意到了星环。它在南美洲上空投下了一道阴影。我们不知道星环是如何形成的。一种理论认为星环是由冰、小石头和其他碎片组成的。
您可以在3级部分观看原始视频。
小行星环是如何形成的？
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