According to them, the city was destroyed by an asteroid explosion that could have ... occurred at a height of about 2.5 ...

Small fossils show mammals moved to the ground before the dinosaurs vanished. New plants changed habitats, giving better food ...

The Chelyabinsk meteor exploded over Russia with a force of 40 Hiroshima nuclear bombs. Damage stretched for 500 square kilometers, destroying 7,200 building and injuring over 1,400 people in its ...