lobate debris aprons ldas are geological features on mars first seen by the viking orbiters consisting of piles of rock debris below cliffs these features have a convex topography and a gentle slope from cliffs or escarpments which suggest flow away from the steep source cliffin addition lobate debris aprons can show surface lineations as do rock glaciers on the earthobate debris aprons ldas are geological features on mars first seen by the viking orbiters consisting of piles of rock debris below cliffs these features have a convex topography and a gentle slope from cliffs or escarpments which suggest flow away from the steep source cliff
The Silver Star, officially the Silver Star Medal, is the third-highest military decoration for valor awarded to members of the United States Armed Forces.he Silver Star is the successor award to the  Citation Star  (3â16 silver star) which was established by an Act of Congress on July 9, 1918.
Service stars, Campaign stars, and Battle stars are worn with one point of the star pointing up on the suspension ribbon of a medal and or service ribbon. A silver star is worn instead of five bronze stars. A service star is sometimes mistaken for a Bronze Star (Bronze Star Medal) or Silver Star (Silver Star Medal). The service star is also similar to the gold and silver 5â16 Inch Stars which may be authorized to be worn on specific individual decorations of certain services to denote additional decorations.