We all want them - even if we're scared. The existence of alien life
has always plagued us for a while. And while we have no idea if they're outside, scientists have built the Drake Equation to give a rough estimate of the potential of alien life outside Earth.
The Drake Equation takes into account seven variables to peg the chances of civilizations outside Earth
. At first, the Drake Equation pegs the chances to extremely low odds.
But at 55 years old (it's built on data from the 1960s), it seems revisions are done to the decades-old formula. And it seems the odds are tipping to our favor.
Drake Equation: Updated and better?
A new study tries to take into the account the "pessimism" and "optimism" we have towards the journey. Just how much do we want to find alien life?
The Drake Equation has constantly plagued scientists
with three uncertainties. Although we are aware how many stars exist in the universe (so far), we have no idea just how many stars can harbor life.
Not to mention, we have no idea how often life "evolves" in a planet and how long planets last.
Scientists then pegged 2 x 10^22 stars in the universe, with 20-percent with planets on habitable zones. That's good enough. But two questions remain: how often does life evolve, and how long these civilizations survive?
The third question is particularly hard to answer. Because, well, the only civilization we know is ours and it's not died off yet.
This is where "optimists" and "pessimists" come in. If we are optimistic enough, then we believe a technological species existed before us. Using this data, then the odds that other intelligent species evolved with us is good.
This revised version converts the interpretation of the Drake Equation. However, more data has to be analyzed in order to get a proper count to the new odds of alien life.