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We don't know about what kind of research they are doing in Area 51 some say aliens are working with humans to develop some powerful weapon and also some spaceships are spotted there @cloudspyder
Black hole will have a less chance we can't say when it will happen

My recent post #Facts about Area 51
https://steemit.com/cn/@saimegh/facts-and-secrets-about-area-51-51

@saimegh, alien is real. They are everywhere, Mother Russia is very transparent on that. The US has a report of alien abduction in the past. Besides, our Chinese airforce and our blue navy in the past year scramble a jet to intercept anomaly of UFO somewhere in South China Sea. Alien is already here, they seems to be friendly