The big screen has played host to many epic alien invasions, but so have our TVs, and here's the five best alien invasions ...
BBC Sky at Night Magazine on MSN
This is the faintest alien world ever photographed from Earth – and it proves exoplanet science is getting ridiculous
The team say the presence of Beta Pictoris d also helps clear up a mystery surrounding the star system.
Sorry, "Predator", but four decades later, this is still the sub-genre's high watermark ...
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