Can WISE find the hypothetical 'Tyche' planet at edge of our solar system?
Sunday, February 20, 2011 - 21:30
in Astronomy & Space
Two astrophysicists recently proposed the existence of a binary companion to our sun, larger than Jupiter, in the long-hypothesized "Oort cloud" -- a faraway repository of small icy bodies at the edge of our solar system. The researchers use the name "Tyche" for the hypothetical planet. Their paper argues that evidence for the planet would have been recorded by the Wide-field Infrared Survey Explorer (WISE).