Sometimes Venus appears in the eastern sky before sunrise. Sometimes it appears in the western sky just after sunset. Therefore it is often called a morning or an evening star, although it is not a star.
Impact crater is a type of impact landform formed due to collision of astronomical objects. Impact crater is a circular depression formed by the hypervelocity impact of a smaller body.Folowing are the examples of impact craters on the Earth:Lonar crater – IndiaKaali crater – EstoniaKarakul crater – Tajikistan
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