http://www.k-grayengineeringeducation.com/blog/index.php/2008/02/17/engineering-education-today-in-history-blog-voyager-1-becomes-most-distant-human-made-object-in-space/ Sat, 04 Feb 2012 10:53:45 +0000 hourly 1 http://wordpress.org/?v=3.0