Do you think aliens in ufos have visited Earth? (And all things UFO)

Scientists have used probability simulations to come to an estimate on the number of alien civilizations that might exist in our Milky Way galaxy, and the number they've arrived at is pretty specific: 42,777, give or take a few hundred.

The value was calculated by researchers Wenjie Song and He Gao from the Department of Astronomy at Beijing Normal University in China, who used something called a Monte Carlo simulation —a mathematical technique used to estimate possible outcomes of an uncertain event—to come to their conclusion.

Scientists have attempted to calculate the number of alien civilizations that might exist in our galaxy before. Most notable among these was Frank Drake, the astronomer who lends his name to the Drake equation that attempts to do this using factors such as average rate of star formation, the fraction of stars with planetary systems, the fraction of such planets which could host life, and so on............

Their work yielded two main results: an optimistic one and a pessimistic one. In the optimistic situation, the researchers suggested the aforementioned 42,777 communicating extraterrestrial intelligent civilizations (CETIs) with an error margin of plus 267 and minus 369, and they would need to survive 2,000 years on average to communicate with us.

In the pessimistic situation, the researchers said there could be as few as 111 CETIS and that they would need to survive for almost 1 million years on average to communicate with us............

https://www.msn.com/en-us/news/tech...sedgntp&cvid=51dac37959264801ae1c0ef84db1f850