Nearly half of Americans believe aliens have visited Earth, but there may be a roughly 38% chance humans are alone in the universe. That conclusion is based on research using the Drake equation: a ...

Related: Drake Equation: Estimating the odds of finding E.T. Now Kipping and Lewis have ascribed Haldane's logic to the famous Drake equation.Developed by astronomer Frank Drake prior to the first ...

In 1961, the US astrophysicist Frank Drake, who passed away on September 2 at the age of 92, came up with an equation to estimate this. The Drake equation, dating from a stage in his career when ...

In 1961 Frank Drake wrote down his now-eponymous equation with which one can predict the number of technological civilizations in the Milky Way galaxy. If one can determine the values of the ...

And where the Drake equation considers planets and intelligent life, the CAT inequality considers factors including breathing rates of infected persons and amounts of virus-carrying droplets expelled.