Lewis Brackett (22 Feb 2011)
"re  NASA'S NOT YET DISCOVERED PLANET TYCHE"

Not exactly discovered----not yet......  I called Sky and Telescope magazine........ what was found was an absence of asteroids and comets in the Ort cloud similar to the gaps between Saturn's rings......... The gaps between Saturn's rings are caused by small moons that sweep aside water ice crystals in their vicinity.........
 
A very small group of experts think this may indicate the presence of a planet in the Ort cloud..........  We may know the truth as the new orbiting infrared telescope sweeps the heavens looking for very dim bodies way way out there........ We may know for maybe :) in a year or so
 
Lewis  Brackett