For as long as that gas planet remains safe, we should mine its clouds.

She flew him through the ring, descending closer to the giant gas planet.

Many had gas giant planets, and were removed from consideration.

The analysis showed not only water vapor, but also methane existing in the atmosphere of the giant gas planet.

Little is known about the internal conditions of the solar system's outer giant gas planets.

Why go to all the trouble of creating a new sun out of a gas planet?

What life form could possibly exist deep within the high-pressure bowels of an enormous gas planet?

"But your gas planets contain a vital resource that our civilization requires."

They may be gas planets or terrestrial, depending on their mass and other parameters.

The tough thing was getting them to look like they had this atmosphere - there's sort of a gas planet feel to them.