YouTube on MSN
Can an equation really tell us how many aliens exist?
In 1961, the astronomer Frank Drake wrote down what is now known as the Drake Equation. It's so important to the culture ...
Morning Overview on MSN
Can math prove aliens exist? The shocking numbers behind the mystery
For decades, scientists have tried to turn the question of alien life from late-night speculation into something you can ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results