Drake Equation

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However, the Drake equation leaves us with data that has high variability. This might make the effort seem futile, but the equation helps astronomers understand the level of technology required to detect intelligent life and obtain an estimate of the number of intelligent lifeforms. The sheer size of the universe also makes it incredibly difficult to observe the activities within it, much less recognize signs of intelligent life. Realizing that our closest stars, Alpha Centari A & B, are roughly 4.35 light years away is humbling and creates a level of appreciation for the information we have been able to collect so far.
Applying the equation and trying to place values into the variables has lead a team of astronomers at Arizona State University …show more content…
The outliers in the equation will cancel each other out as it is unlikely to either over- or under-estimate all variables. Not only this, but as stated above, the equation allows researchers to understand what they are looking for by providing a rough estimate. It keeps researcher’s expectations reasonable and results in a more directed approach to finding a more accurate answer. The main negative to using this way of thinking is that it can only provide an estimate. For example, while the Drake Equation is mostly accurate, when using highly complex variables where the last variable is dependent on the first and all others before it, small deviations have a large …show more content…
The first method, direct observation, involves detecting and imaging planets, and while seemingly the most straightforward direct observation, is extremely difficult to apply. The method works best for young gas giants that emit a high amount of infrared light which make it easy to detect. Even then, the glow of the planets is difficult to observe over the host star's radiation and special measures must be taken to “filter out” light. Additionally, the atmosphere of earth makes it virtually impossible to get clear images of distant objects. The relative density of the atmosphere and the suspended molecule’s ability cause the atmosphere to absorb certain light. Because of this, astronomers are forced to move measurement devices into space to get the clearest picture, adding to the inherent difficulty of this method. Overall, direct observations are important for the classification of objects by giving insight into atmospheric composition and using brightness to indicate
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