In this case, scientists said, the intervening dark objects are probably brown dwarfs, intermediate in size between stars and Jupiter-sized planets.
The Jupiter-sized planet, called HD 189733b, is too hot for life.
Image left: This is an artist's impression of a Jupiter-sized planet passing in front of its parent star.
The Jupiter-sized planet exhibits an unexpectedly low density, about the same as cork.
HD 50554 b is a Jupiter-sized extrasolar planet with minimum mass 4.4 times that of Jupiter.
Wilner says that the hole was probably created when a Jupiter-sized planet cleared that gap of much of its rocky material.
The superflares may be triggered by close-orbiting Jupiter-sized planets.
As of 1999, Iota Horologii is known to have a Jupiter-sized extrasolar planet.
Brady claimed that they could have been caused by a Jupiter-sized planet beyond Neptune that is in a retrograde orbit around the Sun.
The initial period of planet spotting was heavily biased towards heavy, Jupiter-sized planets, which were the easiest things to spot.