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1st Reconnaissance Battalion engage insurgents in Sangin, Afghanistan, 11/19/2010 as part of the counter insurgency ops. Marines are using a suppr...

The Hughes M230 Chain Gun is a 30 mm, single-barrel automatic cannon developed by Hughes and now manufactured by Alliant Techsystems. It is an elec...

Vídeo criado pela NASA em 2006 utilizando milhares de imagens do telescópio Hubble. Disponivel para download permitido pela ESA (Euroupean Space Ag...