At the right distance , they would be in a newly expanded habitable zone around the swelled-up star .
在恰当的距离处,他们将处于鼓胀起来的星星周围的体积变大的可居住的地带。
On top of that , as astronomers get better at discovering planets , and find more habitable ones , the number of plausible targets for seti will increase .
更为重要的是,由于天文学家发现行星手段见长,发现了更多可居住星球,探索地外生物的可用目标将会增多。
None of the planets gregory 's analysis turned up are in the habitable zone .
格列格雷的分析显示可居住区内没有星球。
These three potentially habitable exoplanets may soon be joined by many more .
也许很快会有更多行星加入这三个有可能成为可居住行星的行列。
They 've already bagged huge planets orbiting in a star 's habitable zone -- where any water would be liquid -- and huge planets transiting in front of their stars .
If our own sun had a lower abundance of oxygen , for example , earth would have left the habitable zone a billion years ago , well before complex organisms evolved .