恐竜絶滅をもたらした小惑星は1つきりではなかったとかなんとか。/ Asteroid that eradicated dinosaurs not a one-off, say scientists | Asteroids | The Guardian www.theguardian.com/science/2024...

Asteroid that eradicated dinosaurs not a one-off, say scientists

Scans of underwater crater in West Africa suggest another large asteroid smashed into the planet around the same time