Unfortunately, scientists are still plagued by the fact that what we consider to be a "habitable zone" is subject to a lot of assumptions. Addressing this, an international team of researchersrecently published a paperin which they indicated how future exoplanet surveys could look beyond Earth-an...
Worden told The Associated Press: “I would certainly expect in the next four or five years we’d have an Earth-sized planet in the habitable (可居住的) zone.” 1. What is very important in determining if we are alone in the universe?
in which he would find a well.“Ask the well what is1, ” he was advised, “and the well reveal (告诉,揭露)it to you.” Having found the well, the seeker asked that most basic and important2.And from the depths came the answer: “Go to the village crossroad, and there you shall...
Planetary rotation is also an important factor in habitability. A slow rotation could progressively bake one side of the planet and freeze the other, beyond what life can handle. The new study incorporates both factors to figure out how habitable a planet might be. The researchers said their st...
(2013), by using a sample of exoplanet candidates from theKeplermission, found that small planets (Rp<4R⊕) orbiting around metal-poor stars always have periods greater than 5 days, while planets with similar sizes but around metal-rich stars show shorter periods. Adibekyan et al. (2013)...