Quote:
Originally Posted by Simple Minds
There are more stars in the universe than there are grains of sand on earth. Each star has the potential to house orbiting planets and even if just a minute percentage of those planets are within the bounds of the habitable zone then There is every chance that life outside of the solar system exists.
|
It's practically a mathematical impossibility that intelligent life
doesn't exist within our own galaxy... and there are innumerable galaxies in the Universe. Although, it's not as simple as saying that the planets have to be within the habitable zone of their solar system; they have to be in the habitable part of the galaxy, too... towards the centre of each galaxy, radiation levels and "cosmic events" are off the charts and nothing could survive... But anyway...
There will be billions upon billions of stars exactly like our sun, and a good percentage of those will be orbited by planets under exactly the same conditions as Earth, so the real question is... why WOULDN'T some of those host life just like Earth does? The idea that there are "no aliens" is insane... there simply must be. There are probably billions of alien species out there, and millions of intelligent ones. Or countless more. There might not even be just one Universe
Although maybe they just mean "visitors", or aliens that have come to Earth, don't exist. Which is probably true.