Name: 地外生命的“指纹”
Uploaded: 2021-08-06T14:54:21Z
Duration: 7 min 48 s
Description: 金星上有生命吗？量子天体化学家克拉拉·索萨·席尔瓦找到了一种寻找宜居行星的新方法，并分享了她对一种有毒、有气味的分子的研究，这种分子可能预示着地外生命的存在。

金星上有生命吗？量子天体化学家克拉拉·索萨·席尔瓦找到了一种寻找宜居行星的新方法，并分享了她对一种有毒、有气味的分子的研究，这种分子可能预示着地外生命的存在。

地外生命的“指纹”

Searching for life beyond Earth means looking past familiar signs like oxygen and instead focusing on complex chemical fingerprints. The presence of phosphine, a toxic and foul-smelling gas, in places like Venus’s clouds and Earth’s swamps suggests it could signal life where oxygen is scarce. However, no single molecule is enough—detecting life will require recognizing intricate networks of interacting gases. As technology advances, the real challenge is ensuring we do not miss the subtle signs of alien biospheres when they finally appear.