The cache included swords, spears, lances and chainmail. Researchers think these items may have been buried as part of a ...
The incoming object created an impact basin and sent streams of rocks hurtling like missiles, NASA said. Within minutes, two ...
The moon's Schrödinger impact basin near the south pole holds two grand canyons formed by an enormous asteroid collision 3.8 billion years ago. Unlike Earth's, these canyons formed in less than 10 ...