Credit: NASA Earth Observatory image created by Jesse Allen, using data provided courtesy of NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASAs Terra satellite captured this false-colour image of Chiyli Crater on October 10, 2007. Vegetation appears red, water appears blue, and land with few or no growing plants appears in earth tones. Waterways contrast with their surroundings due primarily to the vegetation clinging to their riverbanks, especially the river southeast of the crater. Source
The Chiyli impact crater, an ancient scar from a cosmic collision. The crater is roughly 1.5 km across (about a mile) - about the same size as Meteor Crater in Arizona - meaning the object that created it was something smaller than a football field, moving at perhaps 30 km/sec (20 miles/sec). It hit about 46 million years ago, give or take. Long after the dinosaurs, but long before us, too. Note that it's a double-rimmed crater too, which sometimes form in large impacts depending on the conditions of the impactor and the ground. Read more
Chiyli is a 5.5 km diameter impact crater in Kazakhstan. It is and the age is estimated to be 46 ± 7 million years (Eocene). The crater is exposed at the surface.