What is the biggest anmade crater and can be seen from Earth orbit?
Sedan Crater Sedan Crater is the result of the Sedan nuclear test and is located within the Nevada Test Site, 12 mi southwest of Groom Lake, Nevada (Area 51). The crater was listed on the National Register of Historic Places on March 21, 1994. The crater is a man-made object that can be seen from earth orbit with the unaided eye.
Abedin (crater) Abedin is a crater on Mercury. It is named after the Bangladeshi Painter Zainul Abedin. It exhibits a complex crater structure with a smooth floor, wall terraces, and a central peak complex. The chains of smaller craters surrounding Abedin are secondary craters formed by ejecta from the initial impact. The northwestern section of Abedin's continuous ejecta blanket appears to have a lower reflectance than the rest of the material adjacent to the crater rim. This pattern suggests that the darker material resided at some depth beneath the northwestern portion of the pre-impact target area and was excavated and redeposited during the crater's formation.