原文的内容可以在这里看到:
http://saturn.jpl.nasa.gov/news/newsreleases/newsrelease20100603/
里面有一段还蛮有趣的
"We suggested hydrogen consumption because it's the obvious gas for life to consume
on Titan, similar to the way we consume oxygen on Earth," McKay said. "If these
signs do turn out to be a sign of life, it would be doubly exciting because it
would represent a second form of life independent from water-based life on Earth."
这里大意是说, 如果像科学家所想的那样, 这些生物是以 hydrogen (气体)为生, 那等於是说
发现了一种不同於地球生物(以水为生)的生命形体.