Melbourne, July 25 : The number of worldwide UFO sightings might be increasing with every passing week, but skeptics are still not swayed by the theory that 'aliens do exist'.
On July 24, moonwalker astronaut Edgar Mitchell claimed that extra-terrestrials have been coming to visit for decades.
Dr Mitchell, 77, added that governments have been covering the sightings up for 60 years.
But the Australian Skeptics are still not impressed by what Dr Mitchell - or anyone else - thought they saw.
Skeptic spokesman Barry Williams said that the truth is closer to home.
"It's all in your head, and you're wrong. We love mysteries and we love solving them, just look at how popular crime fiction and crime TV shows are. The brain needs to find answers, it can't stand not knowing, so it comes to an explanation and quite often it's wrong," News.com.au quoted him, as saying.
Williams said the UFO explanation is "ready made" after decades of articles, books and movies about alien life.
"Two hundred years ago, when nothing of human construction had ever flown, people thought things in the sky were angels or demons," he added.