I've heard a lot of debate recently about the validity of using redshift to determine distance of an object. Do any of you know a lot about this subject? Apparently there are some quasars out there that are emitting matter at superluminous speeds which leads some to believe that measuring their distance via redshift is leading to grossly overestimated distances...

 

"Animation of a series of radio images of 3C 345 at 10.7 GHz over the span of 5 years, if the object was really extragalactic at 1700 MegaParsecs as most cosmologists claim, its jets would be exceeding 7 times the speed of light ! (courtesy John Biretta/Space Telecope Science Institute)"

 

http://home.achilles.net/~jtalbot/news/3C345.html

 

http://www.heretical.com/science/redshift.html

*ahem*

 

You may want to edit the title. It's a little misleading.

 

Tom

LOL thanks for pointing that out, that was a bad typo..

There's one in the body text too.