The official science has no proof. But absence of science relevant proof doesn't mean it  is non-existant. There are several thousand galaxies, and I do believe that life exists in atleast a few of them. Why would God or the creator would want to waste so much space? I also believe there are different dimensions How would one explain the Deja Vu effect?

I found an answer from www.quora.com

Are aliens and UFOs real? - Quora

This is a very hard question to answer because answer is not a simple one but a complex one. Before I go into the existence of elien, first let us think how can we ...

For more information, see Are aliens and UFOs real? - Quora

I found an answer from www.quora.com

Are aliens real? Do they exist? Why do so many people claim aliens ...

Yes they do exist.aliens . life has been found in the extreme environments and in space too. In 2007, thousands of tardigrades were attached to a satellite and ...

For more information, see Are aliens real? Do they exist? Why do so many people claim aliens ...

I found an answer from en.wikipedia.org

Grey alien - Wikipedia

Grey aliens, also referred to as Zeta Reticulans, Roswell Greys, or Grays, are purported .... He maintained that a real Grey had been found and autopsied on camera in 1947, and that the footage released to the public contained a percentage of ...

For more information, see Grey alien - Wikipedia

I found an answer from www.history.com

The First Alien-Abduction Account Described a Medical Exam with a ...

Sep 4, 2018 ... Betty and Barney Hill, who claim to have been abducted by aliens in 1961, holding a book written about their experience .... “This can't be real.

For more information, see The First Alien-Abduction Account Described a Medical Exam with a ...

I found an answer from en.wikipedia.org

Alien - Wikipedia

Alien primarily refers to: Extraterrestrial life, life which does not originate from Earth. Specifically, intelligent extraterrestrial beings; see List of alleged ...

For more information, see Alien - Wikipedia

I found an answer from science.howstuffworks.com

Is the U.S. Government Hiding New Proof of Alien Life ...

Mar 2, 2018 ... Bigelow is a well-known believer in aliens. He told "60 Minutes" that he's " absolutely convinced" that not only are aliens real, they're also ...

For more information, see Is the U.S. Government Hiding New Proof of Alien Life ...

I found an answer from www.scientificamerican.com

If There Are Aliens out There, Where Are They? - Scientific American

Jan 6, 2016 ... Alien life, if it exists, could be as simple as bacteria or more complex than .... If this scenario holds true, our chances of detecting simple life via ...

For more information, see If There Are Aliens out There, Where Are They? - Scientific American

I found an answer from www.nasa.gov

NASA Research Gives Guideline for Future Alien Life Search | NASA

Astronomers searching the atmospheres of alien worlds for signs of life need to be careful, because atmospheric gases that appear to be produced by life can ...

For more information, see NASA Research Gives Guideline for Future Alien Life Search | NASA