All categories / Space Exploration / UFOs & Aliens

Aliens, or extraterrestrial life, are beings that did not originate from Earth. Their form can range from simple bacteria to much more complex forms. They have long been the inspiration behind documentaries, books and films. Below is a collection of conceptual artwork including alien images, alien planetary systems and UFOs that can be found in our image library.

Science Photo Library is your first choice for specialist imagery and videos.

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