金沙游戏官网:Asteroids won't raise killer waves - but mind the splash

 作者:谯呔瘠     |      日期:2019-03-08 02:20:01
By David Shiga THE odds of encountering a tsunami kicked up by an asteroid strike have just plummeted. Best to hope, though, that you’re not underneath the almighty splash such an impact could create. Small impactors hit us far more frequently than larger ones: a 200-metre asteroid hits Earth about every 10,000 years on average,