Aliens could resemble jellyfish the size of a football field

According to a British satellite expert and government adviser the outlandish alien imaginings of Hollywood may not be quite alien enough...

From little green men to the crustacean-like 'prawns' of 'District 9' and H.R.Giger's nightmarish creation in the 'Alien' films - our appetite for imagining how visitors from another planet might look shows no sign of diminishing.

According to a British satellite expert and government adviser, however, the outlandish imaginings of Hollywood may not be quite alien enough.
Dr Maggie Aderin-Pocock - a leading scientist at European space company Astrium - has suggested that, far from being little green men, aliens could actually look like giant jellyfish.
The bizarre creatures the British scientist has dreamt up are she says an example of life "not as we know it".