Stephen Hawking is one of the smartest scientist in the world. He looks 'senget' because of he has a neuro-muscular dystrophy that is related to amyotrophic lateral sclerosis (ALS). In simple terms, he has a motor neuron disease.
The physicist issues a dire warning to mankind in a new documentary: Don't look for alien life because you may not like what you find.
"I imagine they might exist in massive ships, having used up all the resources from their home planet," he said.
"If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," said the astrophysicist in a new television series, according to British media reports.
"Such advanced aliens would perhaps become nomads, looking to conquer and colonize whatever planets they can reach."
On the probability of alien life existing, he says: "To my mathematical brain, the numbers alone make thinking about aliens perfectly rational.
"The real challenge is to work out what aliens might actually be like."
Glowing squid-like creatures, herds of herbivores that can hang onto a cliff face and bright yellow predators that kill their prey with stinging tails are among the creatures that stalk the scientist's fantastical cosmos.
Mankind has already made a number of attempts to contact extraterrestrial civilisations.
In 2008, American space agency NASA beamed the Beatles song "Across the Universe" into deep space to send a message of peace to any alien that happens to be in the region of Polaris -- also known as the North Star -- in 2439.
But the history of humanity's efforts to contact aliens stretches back some years.
The US probes Pioneer 10 and 11 were launched in 1972 and 1973 bearing plaques of a naked man and woman and symbols seeking to convey the positions of the Earth and the Sun.
Voyager 1 and 2, launched in 1977, each carry a gold-plated copper phonogram disk with recordings of sounds and images on Earth.
I can't wait for the series in discovery channel asia-mamalado
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