English: Bigach impact crater, Kazakhstan. At approximately five million years old, Bigach is a relatively young geologic feature. However, active tectonic processes in the region have caused movement of parts of the structure along faults, leading to a somewhat angular appearance (image centre). The roughly circular rim of the 8-kilometer (diameter) structure is still discernible around the relatively flat interior.
In addition to modification by faulting and erosion, the interior of the impact structure has also been used for agricultural activities, as indicated by the presence of tan, graded fields. Other rectangular agricultural fields are visible to the north-east and east. The closest settlement, Novopavlovka, is barely visible near the top of the image.
Image acquired with a Nikon D2Xs digital camera using a 180 mm lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center.
El lloc web de la NASA disposa d'un gran nombre d'imatges de l'Agència Espacial Russa, o soviètica, i d'altres agències no nord-americanes. Aquestes imatges no són necessàriament en el domini públic.
{{Information |Description ={{en|1=Bigach impact crater, Kazakhstan. At approximately five million years old, Bigach is a relatively young geologic feature. However, active tectonic processes in the region have caused movement of parts of the struc
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