日本研究人员宣布在北海道发现了小行星痕迹。这是日本首次确认此类痕迹的存在，这些发现可能与白垩纪恐龙的灭绝有关。
该研究团队于2026年5月21日宣布了这一发现。这些痕迹在北海道被识别出来，并与一次小行星撞击事件相关联。
这是日本首次确认此类痕迹，有望为相关领域的广泛研究做出贡献。来自东北大学的研究人员参与了此项研究。
这一发现提供了新的证据，可能将该小行星与白垩纪的生物大灭绝事件联系起来。
北海道发现的小行星痕迹可能与恐龙灭绝有关
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