11.   Consider the puzzle inside giant gaseous planets like Jupiter.

12.   Failed stars, giant planets or something entirely different?

13.   In July, the probe was released to start its journey toward the giant gaseous planet.

14.   In the past year, astronomers, after decades of fruitless search, have begun discovering giant planets orbiting other stars.

15.   It was the formation of the giant planets Jupiter and Saturn that cleaned out most remaining debris in the inner solar system after its formation, theorists now believe.

16.   Jeanloz said other researchers had suggested that methane in the giant planets could be turned into diamond at relatively high altitudes.

17.   Last year, millions of TV watchers saw his depiction of the Galileo space probe punching into the atmosphere of the giant planet Jupiter.

18.   New detection systems on standard telescopes enabled astronomers to sense slight motions of nearby stars and thus discover the existence of giant planets around stars other than the sun.

19.   New observations of Jupiter will be impossible for the next few months as the Sun blocks the view from Earth to the giant planet.

20.   Over the last several years, a score of giant planets have been discovered far beyond the solar system.