Giant marine reptiles at 2,800 meters above sea level

Earth’s first set of secondary impact craters discovered in Wyoming. Scientists are now seeking the giant primary impact crater responsible, which would be about 31 to 40 miles (50 to 80 km) wide and buried beneath some 280 million years worth of sediment.

News from the climate history of the Dead Sea

2 giant marsquakes rock the far side of the Red Planet