Oh, I just realized what panspermia means.

噢，我好像发现胚种论很污。

" We show the possibility of panspermia carried by these objects, " Zhang said.

" 我们证明了这些物体携带能够产生生命物质（" 有生源说" ）可能性。" 张说。

The theory of panspermia states that life didn't start on Earth, but instead was brought here.

胚种论声生命起源不在地球，在地球之外。

Many researchers consider this hypothesis, called panspermia, unlikely.

许多研究人认这种生精论假设不太可能。

Now hold on, before you start to think that ancient aliens did it, panspermia actually refers to the transference of bacteria.

等一下，你千万别以人类是古代时外星生命带到地球上，胚种论实际上是细菌转移学说引用。

But a more interesting theory, and one which has more credibility, is that of panspermia.

但一个更有趣、也更可信理论是生精论。

But for some scientists, the panspermia hypothesis still holds promise.

但对于一些科学家来说， 生精论假说仍然有希望。

Although he famously entertained the panspermia model for the origin of life on Earth at a conference a decade ago, today Dr. Benner is dubious.

尽管 Benner 博士在十年前一次会议上以提出地球生命起源生源论模型而闻名， 但今天他持怀疑态度。

But if panspermia is indeed possible, and life can be readily dispersed throughout the cosmos, it would fundamentally change how we earthlings see ourselves.

但是，如果真有可能出现生精论， 并且生命可以很容易地散布在整个宇宙中， 那将从根本上改变我们地球人看待自己方式。

The concept of panspermia was kicked off, in part, by the humongous eruption of a volcano on the island of Krakatoa in 1883, says Dr. Melosh.

Melosh 博士说， 生精论概念在一定程度上是由 1883 年喀拉喀托岛上一座火山巨大喷发引发。

" Our life might have originated in Mars if panspermia is possible, " says Akihiko Yamagishi, an astrobiologist at the Tokyo University of Pharmacy and Life Sciences and the lead author of the new study.

“如果生精论是可能，我们生命可能起源于火星，”东京药学与生命科学大学天体生物学家、这项新研究主要作者 Akihiko Yamagishi 说。