By studying other ancient craters, scientists hope to better understand how life may have emerged and developed on Earth. To go further: What is a shock cone? Shock cones are cone-shaped rock ...

The discovery of a massive crater formed by the impact of a meteorite more than 3.5 billion years ago is changing the way ...

Towering hoodoos—cone-shaped spires reaching up to 90 feet tall—rise from the earth, sculpted from layers of ash, pumice, and tuff. Kasha-Katuwe Tent Rocks National Monument, whose name ...