Scientists Made a List of Every Place Aliens Could Be Hiding

今日の英語の習慣化の題材は...
少し難しいかもしれませんが、Tryしてみて下さいね。

宇宙の人類が住める、もしくは、他の人類が生息する可能性のあるリストを科学者達が作ったと言う記事から.. 

Exotica Catalog と呼ばれるものらしいです。ほとんど探査可能範囲内には、他人類の可能性はないらしいのですが...

A team searching for signs of extraterrestrial intelligence has put together an Exotica Catalog, which lists every known type of celestial object, regardless of whether we understand it or not.

The Exotica Catalog was put together by researchers from Breakthrough Listen, a decade-long program seeking to find signs of intelligent life in the universe. It ambitiously includes “one of everything” in astronomy. Incredibly, the catalog lists over 700 distinct targets, ranging from asteroids, comets, and planets through to pulsars, galaxies, nebulae, and star clusters. The point of the catalog is to “expand the diversity of targets surveyed in the Search for Extraterrestrial Intelligence (SETI),” according to the team’s paper, but the compendium could be leveraged for other purposes.