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LIFE ON THE OTHER PLANETS

Humans have long been fascinated by outer space, and have wondered if there are intelligent life-forms elsewhere, which we might be able to contact.
(1) __________, we've all seen space creatures on our TV and cinema screens, but "aliens" like these owe more to the (2) __________ of using human actors or actresses to play the parts than to any real form of (3) __________ investigation.
However, many serious space (4) __________ are now being to turn their attention to the question of what alien life might actually look like. One early result is Arnold the Alien, (5) __________ by biologist, Dougal Dixon. This strange being, unlike humans, has its eyes, ears and limbs in groups of three instead of pairs but, despite its odd appearance, its behaviour is not very different from our own.

1. NATURE
2. CONVENIENT
3. SCIENCE
4. RESEARCH
5. DESIGN