Tweet   Voyager 1 is currently the farthest human-made object from Earth, traveling away from both the Earth and the Sun at a speed that corresponds to a greater specific energy than any other probe.As of February 1, 2009, Voyager 1 is about 108.60 AU (16.247 billion km, or 10.095 billion...

Tweet Canon Rebel T2i Lenses Canon EF-S 18-135mm IS Lens The Canon Rebel T2i accepts all Canon EF and EF-S mount lenses, which are electronic autofocusing lenses. Canon EF-S lenses were introduced with compact digital SLRs (or DSLRs) like the Canon Rebel series.  EF-S lenses are...