If those objects are bigger than Jupiter, longer exposures with NICMOS could reveal them as faint points of light, notes team member Glenn Schneider of the University of Arizona in Tucson. (sciencemag.org)
Doing it from the ground is extremely hard because one has to look for faint points of light against the twilight sky. (discovermagazine.com)
To the right is a much fainter point: Nu Leonis, a binary star system in the same constellation. (insidescience.org)