完整课程详见：http://ed.ted.com/lessons/calculating-the-odds-of-intelligent-alien-life

在其他行星上可能有智能生命存在吗？这是个几十年来持续不断召唤人们各种想象力和好奇心的问题。让我们一同探索德雷克方程式的答案——一个计算未发现生命的可能性的数学公式。

讲授：吉尔·塔尔特；动画制作：TED-Ed

计算智能外星生命的可能性 - 吉尔·塔尔特

Scientists use the Drake equation to estimate how many technological civilizations might exist in our galaxy. Its variables range from the rate of star formation to the odds that intelligent life develops and uses technology. As new planets are discovered, some factors become clearer, but the greatest uncertainty remains how long civilizations survive and transmit. If life is found beyond Earth, even once, it would suggest life is common across the cosmos.

The Search For Aliens Hinges On One Big Unknown

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TED-Ed Original

Jill Tarter: 计算智能外星生命的可能性 - 吉尔·塔尔特