Number 10 2004
第10号证据 2004年
In 2004 scientists examined areas of the sky, which had previously emitted mysterious radio signals.
Only one had gotten stronger, and could perhaps be intelligent life trying to contact others.
2004年，科学家们检查了之前发出神秘无线电信号的太空区域，只有一个信号比较强，可能是智慧生命正在试图相互联系。
Number 09 2001
第9号证据 2001年
In 2001, further calculations of the 1960s "Drake theory" suggested that there are hundreds of thousands of planets in our galaxy that have the conditions to support life.
2001年，进一步计算了60年代的;德雷克理论;，提示在我们的银河系有成千上万的行星适合生命存在。
Number 08 2001
第8号证据 2001年
2001 studies suggested that the red tinge of Jupiter's moon Europa could be a result of feozen bacteria, also explaining the infrared signal it emits.
2001年，一些研究提示木星的木卫2上的红色痕迹可能是冰冻的细菌，也可能是细菌发射出的红外线。
Number 07 2003
第7号证据 2003年
In 2003, Sulphur traces on Jupiter's moon Europa suggested alien life, and a volcanically warmed ocean below the moon's surface which was supporting it.
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