This is the first time we’ve really started reporting the existence of extraterrestrial life in our universe although we’ve been aware of their existence for decades. Just consider this fact and then you can make up your own mind on the subject.
There are 1,000,000,000,000 stars in our galaxy which is called the Milky Way. There are 1,000,000’s of galaxys in the universe.
One Galaxy, Sombrero, is 28,000,000 light years from Earth, has 800,000,000,000 suns and is 50,000 Light years across. Light travels at 186,000 miles per second (700 million miles an hour).
So we have 186,000 x 60 x60 x 24 x 365 = 1 Light Year.