Steven Hawking's suggestion that aliens almost certainly exist but has warned humanity not to try to contact them. This article is dated Apr 2010.
Aliens may not be how we have always imagined them to be (looking like cute ET, for instance) or as friendly as we think they are afterall.
Hawking says that in a universe with 100 billion galaxies, each containing hundreds of millions of stars, it is unlikely that earth is the only place where life has evolved.
"The real challenge is working out what aliens might actually be like."
Hawking says that they could be microbes – basic animals such as worms which have been on Earth for millions of years, but suggests that extraterrestrial life could develop much further.
"We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet," Hawking said.
Maybe one alien we meet may be like this one..
Frankly, we do not have to look beyond our planet to find horrors, we have enough of them here on Earth already. The creepy crawlies we have are enough to scare the wits out of us. Don't believe me? Just imagine a cockroach or a lizard landing on your face.. Ewww!
My male chauvinist friend sent me this for obvious reasons. See if you agree.