Scientific American's The Search For Alien Life
PDF | English | 1.8 MB
PDF | English | 1.8 MB
Scientific American is a popular-science magazine, published (first weekly and later monthly) since August 28, 1845, making it the oldest continuously 			  			 	   			 	  		  		  		  		  		  		  		  		   			 	   		  	   		   	  		 		   	 			   		 			  		  		  	 			   		  	   		   	  		 		   	 			   		  	 			 published magazine in the United States. It brings articles about new and innovative research to the amateur and lay audience.