Such planets could finally spell out earth 's fate .

或许这样的行星最终能够说明地球的命运。

If everyone lived such a lifestyle , humans would need 2.75 planets to survive , it warned .

报告告诫道，如果人人都以这种方式生活，人类将需要2.75个地球才能维持生存。

New planets not free-floating after all ?

新行星根本没在自由漫游？

Planets are plentiful around other stars .

大量的行星围绕着其他的星体。

Finding planets has become commonplace .

寻找行星的工作已经变得司空见惯。