Maybe extraterrestrial intelligence always blows itself up .
也许地外智慧生物常常炸毁自己。
Its environment is comparable to conditions on the moons of jupiter , which are among the candidates for extraterrestrial life .
湖水的生态环境类似于木星的一颗卫星，而这颗卫星是可能承载地外声明的众多备选之一。
Moreover , a host of new technologies will be required , including more-powerful solar panels , electric-ion engines , extraterrestrial mining equipment and robotic refineries .
此外，还需要使用大量新技术，包括更高效的太阳能板、电离子引擎、地外开采设备以及自动精炼工厂。
The expense and enormity of interstellar travel might compel extraterrestrial civilizations to say home and instead transmit images and information about their biology in the hopes of finding interstellar pen pals .
Researchers from the max planck institute for extraterrestrial physics used two telescopes operated by the european southern observatory in chile to watch stars as they circled the centre of the milky way .
