Surprisingly, the crater’s age coincides with Mexico ... “The closest humans have come to seeing something like this is the 1908 Tunguska event, when a 50-metre asteroid entered Earth ...

The historic explosion happened in Tunguska, a remote forest area in the ... If it was a meteor, there would be a crater and meteorite fragments. However, there was no crater.

Astronomers have gotten a glimpse of the "city-killer" asteroid before it disappears until 2028, according to NASA.

The crater's geological features were explored ... Dr. Nicholson noted that the scale of the Nadir impact is reminiscent of the 1908 Tunguska event, which involved a smaller asteroid explosion ...