Asteroid impact risks 'underappreciated'

The advocacy group uses the frequency and size range of the impacts to say something about the probability of larger strikes in the future. Because although Chelyabinsk was a terrifying experience for those caught up in it, the event itself was quite small compared with some of the incomers recorded through Earth history. The foundation says the CTBTO data would suggest that Earth is hit by a mult

[kikai-taro]

おっかない話だ。

[kazutox]

地球に近づく小惑星を発見、監視する探査機を飛ばすプロジェクト