Filler metal selection is another crucial aspect in preventing craters. For general aluminum welding applications, 4043 ...

Sometime in the Middle Eocene epoch, nearly 50 million years ago, a large object hurtled through Earth's atmosphere, crashing ...

Asteroids with different spins and bonding strengths may be responsible for the vast variety of impact craters on Earth, including Arizona's Barringer Crater, new simulations show. When you purchase ...