Alien Invation.

Stephen Hawking has revealed a strong belief in aliens and warned the Earth could be at risk from an invasion.
In a new documentary series, the renowned astrophysicist argued that it is 'perfectly rational' to assume intelligent life exists elsewhere in the universe.
And in an extraordinary series of assertions, he said Earth might be at risk from what he imagines to be 'massive ships' which could try to colonise our planet and purge our resources.
Professor Hawking said: 'We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet.
'I imagine they might exist in massive ships, having used up all the resources from their home planet.

'Such advanced aliens would perhaps become nomads, looking to conquer and colonise whatever planets they can reach.'
It would be 'too risky' to attempt to make contact with alien races, he concluded.

'If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America.

"I imagine they might exist in massive ships, having used up all the resources from their home planet."

1. This is the plot from the film "Independence Day"

2. If aliens were capable of interstellar/intergalactic travel - Why would they ever want to pass millions of planets that are individually made of any element available on Earth.

3. This was one of the flaws in the plot of "Independence Day"