If this little yellow star has a livable planet, we think we ought to try it.

"It would require the entire output of a G-3 sun to shield any halfway livable planet."

They've got some new idea they need to change their breeding habits and occupy a lot of livable planets, which makes me very nervous.

"Binary stars can't have livable planets around them, right?"

"If we can find a livable planet," Hawkins said.

If it passes near a livable planet, that'll be a miracle.

"We could have had a livable planet by now," Melina continued.

Children's television series Silversun starts on its 90-year journey to a livable planet 45 light years from Earth.

"Earth's survival as a livable planet depends on your judgment."

There are livable planets, sure, but not many of them that are like Old Earth.