Stay home ET. UK scientist: Aliens may pose risks
{{#rendered}} {{/rendered}}LONDON (AP) — British astrophysicist Stephen Hawking says aliens are out there, but it could be too dangerous for humans to interact with extraterrestrial life.
Hawking claims in a new documentary that intelligent alien lifeforms almost certainly exist, but warns that communicating with them could be "too risky."
The 68-year-old scientist says a visit by extraterrestrials to Earth would be like Christopher Columbus arriving in the Americas, "which didn't turn out very well for the Native Americans."
{{#rendered}} {{/rendered}}He speculates most extraterrestrial life will be similar to microbes, or small animals — but adds advanced lifeforms may be "nomads, looking to conquer and colonize."
The Discovery Channel said Sunday it will broadcast "Stephen Hawking's Universe" in Britain next month.