ANDREW LELAND: Which is the search for extraterrestrial intelligence people.

安德鲁·利兰：这是寻找外星智慧生命的人。

The search for extraterrestrial intelligence, known as SETI, is an effort to find artificial-looking electromagnetic-radiation signals that might have come from a technologically advanced civilization in a far-away solar system.

搜寻地外文明计划（SETI）是一项寻找人造电磁辐射信号的项目，这些信号可能来自遥远太阳系中技术先进的文明。

Hippke and Learned are not the first to think of this. In 2006, physicist Richard Carrigan of the Fermi National Accelerator Laboratory, in the US, raised the question of whether extraterrestrial intelligence signals needed to be decontaminated.

希普克和罗恩德并不是第一个想到这一点的人。 2006年，美国费米国家加速器实验室的物理学家理查德·卡里根也提出了是否需要对外星人的信号进行净化的问题。