RE: Binary brown dwarf discovered 6.5 ly from Earth, closest in a century.
March 17, 2013 at 11:33 am
I believe the theoretical detection distance of coolest and smallest brown dwarves is well under 1 light year using current technology. Even if we have surveyed every part of the sky with our best technology, we would still have only excluded any closer brown dwarves than alpha centuri from less than 1/64th of the volume of space such brown dwarves might occupy.