What kind of creatures might live on other planets? Are they similar to human life or do they have quite different unexpected forms? Different theories suggest all kinds of scenarios of what aliens might look like.

Learning more and more about our universe, scientists begin to speculate about what the alien life forms from other planets might look like – if they exist, of course. Here are some of the theories put forward by researchers about a possible look of the extraterrestrial creatures.

5 Most Interesting Theories about What Aliens Might Look Like

1. Huge jellyfish

British researcher Dr. Maggie Aderin-Pocock believes that aliens may be marine animals that use light pulses to communicate with each other.

Their body extends from the sunlight, and they are covered with a metal surface for the absorption of light. For growth and reproduction, they absorb chemicals from the atmosphere.

Lenses help them explore their surroundings. The lower part of their body is colored orange for masking, and special bags allow them to flow in the air.

The scientist has built her theory on the fact that life on our planet emerged in the oceans. She came to the conclusion that the extraterrestrial beings could interact with the atmosphere on other planets, as well as organisms in the oceans interact with the water.

2. Insects

Cockroaches are among the most persistent creatures on the planet. Due to the thick exoskeleton, they can survive in a variety of extreme conditions, including a nuclear explosion.

The life forms similar to those of insects are the most likely candidates for the role of alien beings, given the diversity of habitats in the universe. Thus, aliens might look like giant cockroaches. Phew, I hope this theory doesn’t prove true!

3. Human-like aliens

aliens have long lived among us

British paleontologist Simon Conway Morris believes that if extraterrestrial life exists, we need to be wary of it.

He put forward the theory that aliens might be likely to look like humans, not only on the outside and from the biological point of view, but also from the standpoint of having the same defects, such as greed, aggressiveness, and tendency to use the resources of others.

As explained by the scientist, evolution is quite predictable, and the biosphere on other planets should lead to the same intelligent beings with the ever-growing need for resources.

4. Non-carbon life form

Most life forms found on our planet consist of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. However, in 2010, scientists found organisms that do not require oxygen.

This caused some discussions relating to how we envision life and what it could be like on other planets.

There are scientific hypotheses, according to which except for carbon life forms, there could also be silicon ones in the universe. Silicon is just below carbon in the periodic table, has similar chemical properties, and is widely distributed in the universe.

If so, aliens are unlikely to have anything to do with what we see on our planet.

5. Fantastic Creatures

Only within the Milky Way, there are 60 billion planets where extra-terrestrial life might exist and take fantastic shapes.

Astrobiologist Dr. Lewis Dartnell from University College London has put forward a few suggestions of what aliens might look like if life exists on other planets beyond our own.

On planets covered with huge oceans, there might exist aquatic creatures like those that live in the depths of Earth’s oceans.

On a planet with strong gravity and dense atmosphere, large, strong, and aggressive flying creatures might live. On ice planets, only the bacteria could probably survive and come together in a giant network.

Here is what aliens might look like according to scientists. What are your thoughts? Share them with us!

Anna LeMind, B.A.

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