Alien world could host liquid water if it has 50 percent cloud cover, study says.

研究表明，如果外星星球覆盖50%云层就可能拥有液态水。

youdao

Alien world could host liquid water if it has 50 percent cloud cover, study says.

研究表明，如果外星星球覆盖50%云层就可能拥有液态水。

youdao