Most people think of an asteroid impact as one that leaves behind a crater. The Tunguska Event, however, didn’t. Instead, scientists believe the rock exploded once it crashed through the Earth ...

"It is likely around the same size as the 1908 Tunguska rock or the Meteor Crater rock," Rankin said. "So, while impact effects would be more localized than regional, it certainly has the ...

They flattened forests, left massive craters and even killed the dinosaurs. Learn all about Earth’s hugest asteroid strikes.

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.

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 ...