Other than if you want to call spirit beings aliens, there's zero indication in scripture of aliens in the science fiction sense. And, if so, they would have to be very long lived, since it would take about 18,000 years to get to the nearest star, in practically conceivable spaceship speed terms. (It would take something around 150,000 years for the likes of the space shuttle, a lot of botox later, you ladies!) The Bible account of creation also indicates, anyway, the Lord created the heavens and earth, then the living creatures, Adam and Eve, the heavens of adornment nature surrounding His earth creation.
If there were flesh or flesh-like, mortal beings out there of mass, we can be certain we'd never meet them. So, if they were out there, you'd have to depend on getting some sort of signal, and this provided, in the neighborhood of the nearest star, they used signal transmitters on the order of a hundred million watts or more. That being the case, you may get a television signal around four years later from the nearest star, which would be three years after a truly good TV show is cancelled, re: Journeyman, the best show, in years, that only went 13 episodes. Of course, banking on there being life around the nearest star, out of countless others, is probably about as statistically probable as getting hit by lightening from a blue sky. Other than all that, Leonard Nimoy died.